JP5828111B2 - Psychological state evaluation device, psychological state evaluation system, and program - Google Patents

Description

  The present invention relates to a psychological state evaluation apparatus, a psychological state evaluation system, a psychological state evaluation method, and a program for evaluating a psychological state of a target person using biological information of the target person.

  2. Description of the Related Art Conventionally, an awakening support apparatus that supports awakening of a target person is known (see, for example, Patent Document 1).

  A wake-up support device described in Patent Literature 1 determines a driver's drowsiness level using an image including a driver's face, and operates a wake-up support device according to the determination result of the drowsiness level and a driver's operation Helping the driver to awaken. At this time, the awakening support device with the largest ranking point is activated.

  Patent Documents 2 to 4 disclose means for guiding the breathing state of the target person so as to reach the target state.

JP 2011-118831 A JP 2010-104455 A JP 2010-104456 A JP 2010-104457 A

  By the way, when the driver's drowsiness level is high, that is, when the driver's arousal feeling is low, the driver's arousal support varies depending on the driver's fatigue level.

  However, since the conventional arousal support device described in Patent Document 1 does not sufficiently evaluate the driver's psychological state, when the driver's drowsiness level is high, a uniform awakening support device with the highest ranking point is used. Only awakening support was possible. For this reason, the driver may not be able to provide sufficient support for awakening.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a psychological state evaluation apparatus, a psychological state evaluation system, a psychological state evaluation method, and a program capable of accurately evaluating the psychological state of a target person. There is.

The psychological state evaluation apparatus according to the present invention includes an information acquisition unit that acquires biological information of a target person, and the comfort, arousal, and fatigue of the target person using the biological information acquired by the information acquisition unit. A psychological state evaluation unit that evaluates the psychological state of the target person as an index, a storage unit that stores a psychological model representing the relationship between the biological information and the psychological state, and an attribute setting unit that sets attribute information of the target person And a selection unit that selects the psychological model, wherein the psychological model is a comfort model representing a relationship between the biological information and the comfortable feeling, and an arousal representing a relationship between the biological information and the arousal feeling. A sensitivity model, and a fatigue model representing a relationship between the biological information and the fatigue feeling, the attribute information includes at least personality characteristics, and the storage unit identifies the personality characteristics. The psychological model is stored in association with a combination with a biological index obtained from biological information, the information acquisition unit acquires the specific biological information, and the selection unit is set by the attribute setting unit The psychological model corresponding to the combination of the personality characteristic and the biometric index obtained from the specific biometric information acquired by the information acquisition unit is selected from the storage unit, and the psychological state evaluation unit is the selection unit. Applying the biometric information acquired by the information acquisition unit to the comfort model of the selected psychological model to estimate the comfort, and the arousal feeling of the psychological model selected by the selection unit The fatigue information of the psychological model selected by the selection unit is estimated by applying the biometric information acquired by the information acquisition unit to the model for wakefulness to estimate the wakefulness. Model, and estimates the fatigue by applying the biometric information acquired by the information acquisition unit.

  In this psychological state evaluation apparatus, the information acquisition unit includes, as the biological information, first biological information of the target person's autonomic nervous system, second biological information of the central nervous system of the target person, and the target person's information. It is preferable to acquire two or more biochemical third biological information.

  In this psychological state evaluation apparatus, the information acquisition unit acquires at least the third biological information, and the psychological state evaluation unit uses the third biological information acquired by the information acquisition unit to perform the fatigue. It is preferable to estimate the feeling.

  In this psychological state evaluation apparatus, the information acquisition unit acquires the first biological information, the second biological information, and the third biological information as the biological information, and the psychological state evaluation unit includes: It is preferable to estimate the feeling of fatigue using the first biological information, the second biological information, and the third biological information acquired by the information acquisition unit.

  In this psychological state evaluation apparatus, it is preferable that the information acquisition unit acquires the third biological information from a physiological reaction measured using saliva of the target person.

  In this psychological state evaluation apparatus, it is preferable that the selection unit has a function of reselecting the psychological model.

  The psychological state evaluation apparatus preferably includes a device control unit that controls a stimulation device that gives a stimulus to the target person so as to recover the psychological state according to an evaluation result of the psychological state evaluation unit.

  This psychological state evaluation apparatus preferably includes an output unit that outputs an evaluation result of the psychological state evaluation unit.

  The psychological state evaluation system of the present invention includes the psychological state evaluation device and a measurement device that measures a physiological response of the target person.

  In this psychological state evaluation system, it is preferable that the measurement device measures the physiological reaction using saliva of the target person.

The program of the present invention uses a computer as an information acquisition unit that acquires biological information of a target person, and uses the biological information acquired by the information acquisition unit as an indicator of comfort, arousal, and fatigue of the target person. A psychological state evaluation unit that evaluates the psychological state of the target person, a storage unit that stores a psychological model representing the relationship between the biological information and the psychological state, an attribute setting unit that sets attribute information of the target person, and What program der to function as a selection unit for selecting the psychological model, the psychological model, and a comfortable feeling model representing a relationship between the comfort and the biological information, and the wake-up sense of the biological information A model for arousal feeling representing the relationship of the above, and a model for fatigue feeling representing the relationship between the biological information and the feeling of fatigue, wherein the attribute information includes at least personality characteristics, The storage unit stores the psychological model in association with a combination of the personality characteristic and a biological index obtained from specific biological information, and the information acquisition unit acquires the specific biological information, and the selection unit Selects from the storage unit the psychological model corresponding to a combination of the personality characteristic set by the attribute setting unit and the biometric index obtained from the specific biometric information acquired by the information acquisition unit, The psychological state evaluation unit estimates the comfort by applying the biological information acquired by the information acquisition unit to the comfort model of the psychological model selected by the selection unit, and the selection unit Applying the biological information acquired by the information acquisition unit to the awakening sensation model to the awakening sensation model of the psychological model selected by A model for the fatigue selected the psychological model parts, estimates the fatigue by applying the biometric information acquired by the information acquisition unit.

  According to the present invention, the evaluation accuracy of the psychological state can be improved by evaluating the psychological state of the target person using the biometric information of the target person and using the comfort feeling, awakening feeling, and fatigue feeling of the target person as indices. .

It is a block diagram which shows the structure of the psychological state evaluation system which concerns on Embodiment 1. FIG. It is a three-dimensional psychological model representing a psychological state, where (a) is an overall view and (b) is a diagram showing a plane of comfort and arousal. It is a figure which shows the correlation with the estimated value and observation value in a feeling of comfort. It is a figure which shows the correlation of the estimated value and observation value in arousal feeling. It is a figure which shows the correlation with the estimated value and observation value in a feeling of fatigue. It is a flowchart which shows operation | movement of the psychological state evaluation apparatus which concerns on Embodiment 1. FIG. It is a case where the psychological state of an object person is recovered using the psychological state evaluation system concerning Embodiment 1, and (a) is a figure showing a feeling of comfort, (b) is a figure showing an arousal feeling, and (c) is a feeling of fatigue. FIG. It is explanatory drawing for demonstrating the case where the recovery of the psychological state of an object person is promoted using the psychological state evaluation system which concerns on Embodiment 1. FIG. It is explanatory drawing for demonstrating the case where the psychological state evaluation apparatus which concerns on Embodiment 1 is used at the time of product development. It is explanatory drawing for demonstrating the case where the psychological state evaluation apparatus which concerns on Embodiment 1 is used for daily health management of an object person. It is a flowchart which shows operation | movement of the psychological state evaluation apparatus which concerns on Embodiment 2. FIG.

  In the following first and second embodiments, a psychological state evaluation apparatus that evaluates a psychological state of a target person using biological information of the target person and a psychological state evaluation system using the same will be described.

(Embodiment 1)
As shown in FIG. 1, the psychological state evaluation system 1 according to the first embodiment includes a psychological state evaluation device 2 that evaluates the psychological state of the target person 5 and a measurement device 3 that measures a physiological reaction of the target person 5. ing.

  The psychological state evaluation apparatus 2 according to the present embodiment estimates the comfort, awakening, and fatigue of the target person 5 using the biological information of the target person 5, and uses the estimated comfort, awakening, and fatigue as indices. The psychological state of the target person 5 is evaluated.

  As the physiological reaction of the target person 5, the physiological reaction of the autonomic nervous system of the target person 5 (hereinafter referred to as “first physiological response”) and the physiological reaction of the central nervous system of the target person 5 (hereinafter referred to as “second physiological response”). And a physiological reaction of the biochemical system of the target person 5 (hereinafter referred to as “third physiological reaction”). The first physiological response is, for example, heart rate, blood pressure, respiratory rate, skin temperature, or electrodermal activity (including skin potential level). In the psychological state evaluation system 1, one type or a plurality of types of first physiological responses are measured. The second physiological response is, for example, cerebral blood flow or electroencephalogram. In the psychological state evaluation system 1, one type or a plurality of types of second physiological responses are measured. The third physiological response is a concentration or amount such as, for example, cortisol, amylase, immunoglobulin A, chromogranin A, DHEA, HHV-6, MHPG, 8-OHdg or testosterone. In the psychological state evaluation system 1, one type or a plurality of types of third physiological responses are measured.

  The feeling of comfort refers to the degree of comfort feeling in the psychological state of the target person 5. Such a feeling of comfort can be estimated using, for example, the first biological information and the second biological information. The arousal feeling refers to the degree of arousal emotion in the psychological state of the target person 5. Such a sense of arousal can be estimated using, for example, the first biological information and the second biological information. The feeling of fatigue refers to the degree of fatigue feeling in the psychological state of the target person 5. Such fatigue can be estimated using, for example, the first biological information, the second biological information, and the third biological information.

  As shown in FIG. 2A, the psychological state changes according to the level of comfort, the level of arousal, and the level of fatigue. Such a psychological state includes, for example, types of psychological states such as a refresh state, an irritated state, a bored state, and a relaxed state, and a level in any one of these psychological states. The relaxed state refers to a state in which the central nervous system is inactive among the states in which the paraswitching nerve is dominant and the α wave in the electroencephalogram is expressed. The refresh state refers to a state in which an α2 wave that is a fast component (10 to 13 Hz) of α waves (8 to 13 Hz) in an electroencephalogram is expressed and the central nerve is active. According to Russell's emotional ring model, as shown in FIG. 2B, the relaxed state includes, for example, satisfaction, relief, relaxation, calmness, sleepiness, and the like. Examples of the refresh state include excitement, surprise, joy, and happiness. Examples of the frustrating state include vigilance, anger, fear, tension, dissatisfaction, unpleasantness, and suppression. Examples of bored states include sadness, trouble, boredom, and depression.

  Then, the structure of the measuring apparatus 3 shown in FIG. 1 is demonstrated. The measuring device 3 is a device that measures biological information of the target person 5. The measurement device 3 of the present embodiment includes a first measurement unit 31 that measures a first physiological response, a second measurement unit 32 that measures a second physiological response, and a first measurement unit that measures a third physiological response. 3 measuring units 33.

  The 1st measurement part 31 is a sensor according to the kind of 1st physiological response which should be measured. For example, the first measurement unit 31 includes a heart rate sensor that measures a heart rate, a blood pressure sensor that measures blood pressure, a respiratory sensor that measures respiration rate, a skin temperature sensor that measures skin temperature, and electrodermal activity (electricity by sweating). It is equipped with an electrodermal activity sensor that measures changes in conductivity. The heartbeat and blood pressure can be measured by detecting a so-called pulse wave, and can be measured by one sensor (device). The first measurement unit 31 may include all of these various sensors, or may include only necessary sensors from among these various sensors, for example, depending on specifications.

  The 2nd measurement part 32 is a sensor according to the kind of 2nd physiological response which should be measured. For example, the second measuring unit 32 is a cerebral blood flow measuring device that measures surface cerebral blood flow by near infrared spectroscopy (NIRS), a brain not only in the surface cerebral blood flow but also in a relatively deep part (center) of the brain. An fMRI apparatus that also measures blood flow, an electroencephalograph that measures brain waves, and the like are provided. The second measuring unit 32 may include all of these various measuring devices, or may include only a necessary measuring device from among these various measuring devices, for example, depending on specifications. .

  The 3rd measurement part 33 is a sensor according to the kind of 3rd physiological response which should be measured. For example, the third measurement unit 33 includes a cortisol concentration measurement device that measures cortisol concentration, an amylase concentration measurement device that measures amylase concentration, and an immunoglobulin A concentration measurement device that measures immunoglobulin A concentration. . In the third measurement unit 33, the cortisol concentration, amylase concentration, and immunoglobulin A concentration can be measured by collecting at least one of saliva, blood, and urine of the subject person 5. The third measurement unit 33 preferably collects saliva from the target person 5 and measures the third physiological response in that the influence of the measurement on the psychological state is small. Note that the third measurement unit 33 may include all of these various measurement devices, or may include only a necessary measurement device from among these various measurement devices, for example, depending on specifications. .

  Then, the structure of the psychological state evaluation apparatus 2 is demonstrated. The psychological state evaluation device 2 includes an information acquisition unit (data processing unit) 21, a psychological state evaluation unit 22, an input unit 23, an output unit 24, a device control unit 25, a control unit 26, and a storage unit 27. It has. The psychological state evaluation apparatus 2 is an apparatus having a computer having a CPU (Central Processing Unit) and a memory as main components. In particular, the psychological state evaluation unit 22, the device control unit 25, and the control unit 26 operate in accordance with a program stored in the storage unit 27 with a CPU mounted on the computer as a main component.

The information acquisition unit 21 is connected to the measurement device 3, performs signal processing of the physiological reaction measured by the measurement device 3 into data that can be processed by the psychological state evaluation unit 22, and then transmits the physiological information to the psychological state evaluation unit 22 as biological information. Output. That is, the information acquisition unit 21 can acquire biological information used by the psychological state evaluation unit 22. The biometric information may be a difference value. When the physiological response measured by the measurement device 3 is used as it is by the psychological state evaluation unit 22, the information acquisition unit 21 outputs the physiological reaction measured by the measurement device 3 as biological information to the psychological state evaluation unit 22 as it is. To do.

  The information acquisition unit 21 of this embodiment includes a first data processing unit 211, a second data processing unit 212, and a third data processing unit 213. The first data processing unit 211 is provided corresponding to the first measuring unit 31, and the psychological state evaluating unit 22 outputs the output of the first measuring unit 31 (one type or a plurality of types of first physiological reactions). Signal processing is performed on the processable data, and the first biological information is output to the psychological state evaluation unit 22. The second data processing unit 212 is provided corresponding to the second measurement unit 32, and the psychological state evaluation unit 22 outputs the output (one type or a plurality of types of second physiological reactions) of the second measurement unit 32. Signal processing is performed on the processable data, and the second biological information is output to the psychological state evaluation unit 22. The third data processing unit 213 is provided corresponding to the third measurement unit 33, and the psychological state evaluation unit 22 outputs the output of the third measurement unit 33 (one type or a plurality of types of third physiological reactions). Signal processing is performed on the processable data, and the third biological information is output to the psychological state evaluation unit 22.

  For example, when the psychological state evaluation unit 22 uses the heart rate per minute as the first biological information, the first data processing unit 211 counts the heart rate for 1 minute using the output of the first measurement unit 31. The count value is output to the psychological state evaluation unit 22. When the psychological state evaluation unit 22 uses the maximum blood pressure and the minimum blood pressure as the first biological information, the first data processing unit 211 obtains the maximum value and the minimum value of the blood pressure from the output of the first measurement unit 31. The maximum value and the minimum value are output to the psychological state evaluation unit 22.

  When the psychological state evaluation unit 22 uses the frequency spectrum of the electroencephalogram as the second biological information, the second data processing unit 212 uses the brain wave from the output of the second measurement unit 32 by, for example, fast Fourier transform (FFT). And the frequency spectrum is output to the psychological state evaluation unit 22.

  Further, when the psychological state evaluation unit 22 uses the cortisol amount per unit volume as the third biological information, the third data processing unit 213 converts the predetermined amount of cortisol amount into a third volume by converting the cortisol amount per unit capacity, for example. The amount of cortisol per unit capacity is obtained from the output of the measurement unit 33, and this cortisol amount is output to the psychological state evaluation unit 22. When the psychological state evaluation unit 22 uses the amount (difference value) of immunoglobulin A per cc as the third biological information, the third data processing unit 213 uses, for example, the amount of immunoglobulin A having a predetermined capacity to be 1 cc. The amount of immunoglobulin A per 1 cc is obtained from the output of the third measurement unit 33 by, for example, conversion to a hit, and this amount is output to the psychological state evaluation unit 22.

  The psychological state evaluation unit 22 is connected to the information acquisition unit 21, and uses the first biological information, the second biological information, and the third biological information acquired by the information acquisition unit 21 to comfort the target person 5. The psychological state (including type and level) of the target person 5 is evaluated using feeling, arousal feeling, and fatigue feeling as indices. In the psychological state evaluation unit 22, for example, a psychological model representing the relationship between the first to third biological information and the psychological state is used. The psychological model is stored in the storage unit 27.

  The psychological model includes a comfort feeling model, an arousal feeling model, and a fatigue feeling model. The comfort model is a model representing the relationship between biometric information and comfort. The arousal model is a model representing the relationship between biological information and arousal. The fatigue model is a model representing the relationship between biological information and fatigue. The psychological model of the present embodiment is represented by a function formula (psychological model formula). The psychological model formula includes the first biological information α1i (i = 1, 2,...), The second biological information α2j (j = 1, 2,...), And the third biological information α3k (k = 1, 2,...) Are independent variables, and comfort β1, arousal β2, and fatigue β3 are dependent variables, and are linear or non-linear. Note that the psychological model may be represented in a table format (table format) instead of a functional expression.

  In the present embodiment, the comfortable feeling is estimated from the biological information (first biological information) of the autonomic nervous system of the target person 5 and the biological information (second biological information) of the central nervous system of the target person 5. . Therefore, the comfort model (comfort model) is, for example, comfort β1 = a1 × first biological information α11 + a2 × second biological information α21 + a3. a1 to a3 are coefficients. The psychological state evaluation unit 22 estimates the comfortable feeling β1 by applying the first biological information α11 and the second biological information α21 acquired by the information acquiring unit 21 to the comfortable feeling model formula.

  The arousal sensation is estimated from the biological information (first biological information) of the autonomic nervous system of the target person 5 and the biological information (second biological information) of the central nervous system of the target person 5. Therefore, the awakening feeling model (awakening feeling model formula) is, for example, awakening feeling β2 = b1 × first biological information α12 + b2 × second biological information α22 + b3. b1 to b3 are coefficients. The psychological state evaluation unit 22 estimates the arousal feeling β2 by applying the first biological information α12 and the second biological information α22 acquired by the information acquisition unit 21 to the arousal model.

  The feeling of fatigue includes the biological information (first biological information) of the autonomic nervous system of the target person 5, the biological information (second biological information) of the central nervous system of the target person 5, and the biochemical system of the target person 5. It is estimated from the biological information (third biological information). Therefore, the fatigue feeling model (fatigue feeling model formula) is, for example, fatigue feeling β3 = c1 × first biological information α13 + c2 × second biological information α23 + c3 × third biological information α31 + c4. c1 to c4 are coefficients. The psychological state evaluation unit 22 estimates the fatigue feeling β3 by applying the first biological information α13, the second biological information α23, and the third biological information α33 acquired by the information acquisition unit 21 to the fatigue model. . Note that fatigue is not estimated using all of the first biological information, the second biological information, and the third biological information, but is estimated using one or two of them. May be.

  By the way, the psychological model mentioned above is, for example, when a stress-reducing operation is performed in which each subject actively works or breathes after giving a short-term acute stress load to a plurality of subjects. It is a determined model. Specifically, the psychological model is statistically determined by measuring each subject's physiological response before and after applying an acute stress load and before and after each subject's active activity, and acquiring biological information of each subject. That is, the psychological model is a model determined using biological information that has changed due to an acute stress load and the active activity of each subject. As a specific example of acute stress load, the task of answering the numerical addition problem displayed on the monitor with a numeric keypad, etc., or the meaning and display color of characters displayed on the monitor (for example, “Midori” or “Aka”) There is a task that answers whether or not matches. Thus, since the psychological model is a model under a certain condition in which the subject performs active activity, the psychological state of the target person 5 under the certain condition can be more accurately evaluated.

  As another example, for a plurality of subjects, by giving a standard predetermined stimulus that is caused in a predetermined psychological state, by measuring the physiological reaction of each subject at this time and obtaining the biological information of each subject, The psychological model may be determined statistically. The standard predetermined stimulus is preferably one or more stimuli that can be sensed by at least one of the five senses (sight, hearing, touch, smell, taste), for example. Specifically, the standard predetermined stimulus is, for example, a still image that makes the subject relax, or a movie that makes the subject irritated, and further, music that makes the subject relax or an irritated subject on the image. You may combine music to make. Furthermore, you may combine the aroma oil which makes a test subject relax. Since the psychological model is a model under a certain condition in which one or a plurality of stimuli that can be sensed by at least one of the five senses is given to the subject, the psychological state of the target person 5 under the certain condition is further increased. It can be evaluated with high accuracy.

  The psychological model is a relationship between the biological information and the psychological state when one or more stimuli that can be sensed by at least one of the five senses is given to a plurality of subjects at a predetermined timing. It may be a model representing the time-series relationship. Since such a psychological model represents a time-series relationship, the psychological state evaluation unit 22 can evaluate the psychological state of the target person 5 by a change with time from a predetermined timing.

  The psychological model is created in advance for each attribute information, and stored in the storage unit 27 in association with each attribute information. For example, a plurality of psychological models stored in the storage unit 27 are first classified into a psychological model for men and a psychological model for women. Men's psychological models are further prepared for each age, and men's psychological models or men's psychological models for each age are prepared for each personality characteristic. In addition, a psychological model for women is prepared for each age, and a psychological model for women or a psychological model for women by age is prepared for each personality characteristic. Note that the psychological model may be a model that is roughly classified by one attribute information among a plurality of attribute information, and the coefficient of the independent variable is changed by the remaining attribute information. Specifically, in both the psychological model for men and the psychological model for women, the coefficient of the independent variable is changed according to the age or personality characteristics. The plurality of psychological models stored in the storage unit 27 are not limited to the above classification, and may be a classification using at least one of gender, age, and personality characteristics.

  The input unit 23 is, for example, a keyboard, a plurality of operation buttons, a mouse, a touch panel, and the like, and is a device for inputting various commands and data given to the control unit 26 by the target person 5 or the operator. For example, information related to the attribute of the target person 5 is input to the input unit 23.

  The output unit 24 is, for example, a display device such as a CRT (Cathode-Ray Tube) display, a liquid crystal display, or an organic EL (Electro-Luminescence) display, or a printer, and has a function of displaying various commands and data. The output unit 24 may be an audio output device such as a speaker. In this case, the output unit 24 outputs various commands and data with sound (including sound).

  Such an output unit 24 outputs the evaluation result of the psychological state evaluation unit 22. That is, the output unit 24 outputs the psychological state evaluated by the psychological state evaluating unit 22. As described above, the output unit 24 outputs the psychological state of the target person 5 so that the target person 5 and the operator can recognize the evaluation result in substantially real time. The output unit 24 may display the psychological state of the target person 5 on, for example, a three-dimensional psychological model. Thereby, the psychological state of the target person 5 can be easily recognized visually.

  Further, the output unit 24 has a function of outputting a coping method (advice) for the target person 5 according to the evaluation result of the psychological state evaluation unit 22.

  Note that the output unit 24 may output the final evaluation result at the end of measurement as the psychological state of the target person 5, or output the evaluation results evaluated at predetermined time intervals from the start of measurement in time series. Also good. By outputting the evaluation results in time series, the psychological state of the target person 5 is output as a trajectory, so that the temporal change in the psychological state of the target person 5 can be recognized.

  The device control unit 25 is connected to each of a plurality (three in the illustrated example) of stimulation devices 4, 4, 4 via a network such as a LAN (Local Area Network). The device control unit 25 controls each stimulation device 4 by outputting a control signal to each stimulation device 4.

  The stimulating device 4 is a device for applying a stimulus to at least one of the five senses of the target person 5 to change the psychological state of the target person 5. Specific examples of the stimulating device 4 include a lighting device that can change the illuminance and color temperature of the illumination light, a video device that selectively displays video of various genres, or music of various genres. There are sound equipment to do. Other examples of the stimulating device 4 include a functional chair that applies tactile stimulation and swinging to the target person 5, a fragrance sprayer that sprays the fragrance, an air conditioner that controls the air conditioning around the target person 5, or the target person. There is a high-concentration oxygen supply device that supplies high-concentration oxygen around 5.

  The device control unit 25 controls each stimulation device 4 to recover the psychological state of the target person 5 according to the evaluation result of the psychological state evaluation unit 22. For example, the device control unit 25 causes the fragrance sprayer to spray a fragrant fragrance that arouses the motivation of the target person 5, or causes the acoustic device to play bright music or increase the volume.

  In addition, the device control unit 25 can control each stimulation device 4 so as to guide the breathing rhythm of the target person 5 to the target rhythm. The operation for inducing the rhythm of breathing to the target rhythm is the same as that described in Patent Documents 2 to 4, and thus detailed description of the above operation is omitted. Thereby, the psychological state of the target person 5 can be effectively recovered in a short time.

  The control unit 26 controls the measurement apparatus 3 and the entire psychological state evaluation apparatus 2. The control unit 26 executes the functions of the attribute setting unit 261, the selection unit 262, and the condition setting unit 263.

  The attribute setting unit 261 sets the attribute information of the target person 5 using the information input to the input unit 23. The attribute information of the target person 5 includes sex (by gender), age, personality characteristics, and the like. In this way, the individuality of the target person 5 is specified by gender, age, and personality characteristics. The personality characteristic is, for example, a personality determined by a known personality diagnostic method. Specifically, after the output unit 24 outputs a questionnaire question and causes the target person 5 to input the answer of the question from the input unit 23, the attribute setting unit 261 analyzes the answer input to the input unit 23. Thus, the character of the target person 5 is determined (diagnosed). The questionnaire form may be distributed to the target person 5, the answer from the target person 5 is analyzed, the personality of the target person 5 is determined in advance, and the determined personality may be input to the input unit 23 as a personality characteristic. In this case, the attribute setting unit 261 sets the personality characteristic input to the input unit 23.

  The selection unit 262 selects a psychological model corresponding to the attribute information set by the attribute setting unit 261 from the storage unit 27. The condition setting unit 263 is configured to measure one type or a plurality of types of physiological responses by the measurement device 3 so that the information acquisition unit 21 acquires biological information used for the psychological model selected by the selection unit 262. The measurement device 3 and the information acquisition unit 21 are controlled so that the data processing is performed by the device 21. The psychological state evaluation unit 22 uses the psychological model selected by the selection unit 262. That is, the psychological state evaluation unit 22 estimates the comfort, arousal, and fatigue by applying the biological information acquired by the information acquisition unit 21 to the psychological model selected by the selection unit 262.

  Thus, since the individuality of the target person 5 can be specified by the attribute of the target person 5, a psychological model appropriately adapted to the target person 5 can be selected, and the psychological state of the target person 5 is appropriately evaluated. be able to.

  For example, when “male, 30s, serious personality” is input to the input unit 23, the selection unit 262 selects a psychological model for males in their 30s with a serious personality, and the psychological model is evaluated for psychological state. To the unit 22. The psychological model output to the psychological state evaluation unit 22 is set by the psychological state evaluation unit 22. For example, when the heart rate, the highest blood pressure, the electrical skin activity, and the electroencephalogram are used as the independent variable α of the psychological model (psychological model formula) selected by the selection unit 262, the information acquisition unit 21 acquires these biological information. In addition, the condition setting unit 263 operates the heart rate monitor, blood pressure monitor, electrodermal activity sensor, and electroencephalograph in the measurement apparatus 3. Alternatively, the condition setting unit 263 measures the physiological reaction of the target person 5 with a heart rate monitor, a blood pressure monitor, a skin electrical activity sensor, and an electroencephalograph in the measurement device 3 so that the information acquisition unit 21 acquires the biological information. A message to that effect is output to the output unit 24. Furthermore, the condition setting unit 263 causes the information acquisition unit 21 to perform data processing so as to generate each piece of biological information such as heart rate, systolic blood pressure, skin electrical activity, and electroencephalogram from each data obtained by the measuring device 3.

  In such a configuration, a plurality of psychological models are prepared in advance, one psychological model is selected from the plurality of psychological models according to the attribute information of the target person 5, and the biological information used in the selected psychological model The information acquisition unit 21 controls the measurement device 3 and the information acquisition unit 21. Thereby, in the psychological state evaluation system 1 of this embodiment, required biological information can be acquired according to the attribute of the target person 5, and waste such as acquiring unnecessary biological information can be eliminated.

  The storage unit 27 includes a ROM (Read Only Memory) that is a nonvolatile memory element, an EEPROM (Electrically Erasable Programmable Read Only Memory) or flash memory that is a rewritable nonvolatile memory element, and a volatile memory element. It has a RAM (Random Access Memory).

  The storage unit 27 is connected to the control unit 26 and stores various data. In particular, the storage unit 27 stores a psychological model corresponding to each piece of attribute information.

  The storage unit 27 stores a program for causing the psychological state evaluation device (computer) 2 to function as the psychological state evaluation unit 22, the device control unit 25, and the control unit 26. The program is stored in the storage unit 27 when the psychological state evaluation apparatus 2 is initially set. However, when the psychological state evaluation apparatus 2 loads the program after the start of use, an example of a method in which the psychological state evaluation apparatus 2 loads the program is a computer-readable recording medium (for example, a memory card) that records the program. , CD-ROM, DVD-ROM, etc.). When a recording medium is used, the psychological state evaluation device 2 only needs to include a drive device (not shown) for reading data on the recording medium. As another method, there is a method of downloading the program from a server using a network. When downloading the above-described program via a network, the psychological state evaluation apparatus 2 only needs to have a communication function (not shown) for communicating with a server using the network.

  Incidentally, the selection unit 262 of the control unit 26 is configured to reselect a psychological model. For example, when a reselection instruction for causing the selection unit 262 to reselect a psychological model is input to the input unit 23 from the target person 5 or an operator who feels uncomfortable in the evaluation result of the psychological state, the selection unit 262 is psychological. Reselect the model. For example, the selection unit 262 selects another psychological model close to the attribute information of the target person 5 instead of the psychological model selected according to the attribute information of the target person 5, or sets the attribute information of the target person 5. The psychological model is reselected by changing the coefficient of the psychological model selected in accordance with a predetermined step (step size) set in advance. By reselecting the selection unit 262, the condition setting unit 263 resets the measurement device 3 and the information acquisition unit 21 as necessary. The psychological state evaluation apparatus 2 according to the present embodiment can evaluate the psychological state of the target person 5 using various psychological models by reselecting the psychological model, and obtain a more appropriate evaluation result of the psychological state. be able to.

  Next, the accuracy of the psychological model will be described. For example, the operator applies predetermined acute stress and stress relaxation stimulus to a plurality of subjects. At this time, an operator calculates | requires each subject's comfort feeling, arousal feeling, and fatigue feeling using the subjective evaluation with respect to each subject. On the other hand, the measurement device 3 measures the physiological reaction of each subject, the information acquisition unit 21 performs data processing, and the psychological state evaluation unit 22 uses a psychological model (psychological model formula) to feel comfort, arousal, and fatigue of each subject. Estimate the feeling. The horizontal axis of FIGS. 3-5 is an observed value, and a vertical axis | shaft shows an estimated value. The observed value is a value obtained from the subjective evaluation. The estimated value is a value estimated from a psychological model. In the case of the comfort feeling shown in FIG. 3, the correlation coefficient R is 0.60, in the case of the arousal feeling shown in FIG. 4, the correlation coefficient R is 0.70, and in the case of the fatigue feeling shown in FIG. The relation number R is 0.61. It should be noted that the significance probability of all models of comfort, arousal, and fatigue is significant within 1%.

  Next, a psychological state evaluation method using the psychological state evaluation system 1 according to the present embodiment will be described with reference to FIG. First, the attribute information of the target person 5 is input to the input unit 23 by the target person 5 or an operator (S1), and the attribute setting unit 261 of the control unit 26 sets the attribute information. Thereafter, the selection unit 262 selects a psychological model corresponding to the attribute information set by the attribute setting unit 261 from a plurality of psychological models stored in the storage unit 27 (S2). The psychological model selected by the selection unit 262 is output to the psychological state evaluation unit 22 and set by the psychological state evaluation unit 22. The condition setting unit 263 sets the measuring device 3 and the information acquisition unit 21 so that the information acquisition unit 21 acquires biological information corresponding to the independent variable of the psychological model (psychological model formula) selected by the selection unit 262. (S3).

Next, the measurement device 3 measures the physiological response of the target person 5 (S4), and the information acquisition unit 21 acquires the physiological response measured by the measurement device 3 and performs data processing (S5). Thereafter, the psychological state evaluation unit 22 applies the biological information from the information acquisition unit 21 to the psychological model selected in Step S2 , and estimates the comfort, arousal, and fatigue of the target person 5 to estimate the target person. 5 is evaluated (S6). Thereafter, the output unit 24 outputs the evaluation result of the psychological state evaluation unit 22 (S7).

  Next, a usage example of the psychological state evaluation system 1 according to the present embodiment will be described. First, as a first usage example, a case will be described in which the psychological state of the target person 5 is recovered using the psychological state evaluation system 1 of the present embodiment. After evaluating the psychosomatic state of the target person 5, the psychological state evaluation device 2 controls each stimulation device 4 so as to guide the respiratory rhythm of the target person 5 to the target rhythm. FIG. 7 (a) shows the relationship between comfort and expiration interval, FIG. 7 (b) shows the relationship between arousal and expiration interval, and FIG. 7 (c) shows the relationship between fatigue and expiration interval. ing. In FIGS. 7A to 7C, 0% is a normal exhalation interval of the target person 5, and 100% is a maximum exhalation interval that does not cause the target person 5 to suffer. The comfort value in FIG. 7 (a), the arousal value in FIG. 7 (b), and the fatigue value in FIG. This is a value obtained by subtracting the “level at the time of evaluating”. As shown in FIG. 7, when breathing induction was performed under the condition where the exhalation interval was near 100%, the feeling of comfort increased and the feeling of arousal and fatigue decreased. Thereby, the effect with respect to a stress relaxation and falling asleep can be acquired with the maximum exhalation interval of the grade which the subject person 5 does not suffer.

  Subsequently, as a second usage example, a case where the recovery of the psychological state of the target person (driver) 5 is promoted using the psychological state evaluation system 1 of the present embodiment will be described with reference to FIG. In the second usage example, the psychological state evaluation system 1 is mounted on a car. When the arousal feeling of the target person 5 during driving decreases, the psychological state evaluation device 2 evaluates the psychological state using the arousal feeling as well as the fatigue feeling as an index. You can change the message. For example, when the feeling of fatigue is small, the psychological state evaluation device 2 outputs advice that gives a stimulus to the five senses of the target person 5 or encourages a short break or a change of mood. On the other hand, when the feeling of fatigue is large, the psychological state evaluation device 2 outputs advice to encourage a long break (nap). Thereby, even if it is a case where the awakening feeling of the object person 5 during driving | running | working similarly falls, according to the magnitude | size of a feeling of fatigue, an appropriate advice can be proposed to the object person 5. FIG.

  In addition, the psychological state evaluation apparatus 2 of this embodiment can implement | achieve the same thing not only at the time of the above driving | operations but also at the time of VDT (Visual Display Terminals) work or at the time of learning. Can be encouraged to take appropriate breaks.

  Then, the case where the psychological state evaluation system 1 of this embodiment is used at the time of product development is demonstrated as a 3rd usage example. In this case, the psychological state evaluation apparatus 2 evaluates the psychological state of the target person (product user) 5 who uses the product that refreshes the user, for example. The “product a”, “product b”, and “product c” shown in FIG. 9 can refresh the target person 5, but the degree of fatigue after use is different as shown in FIG. ing. The product developer obtains such evaluation results to encourage the development of products that reduce fatigue after use even if the product is refreshed by the user in the same way, or differentiate it from other products. Can be planned.

  Then, the case where the psychological state evaluation system 1 of this embodiment is used for daily health management of the target person 5 will be described as a fourth usage example. When the psychological state evaluation device 2 evaluates the psychological state of the target person 5 at the same time every day, as shown in FIG. 10, even if there is no significant change in comfort and arousal in comparison with the previous day, fatigue It is possible to notify the target person 5 that the feeling has been accumulated and increased. Thereby, the target person 5 can objectively obtain a change in his / her psychological state, which is useful for the health management of the target person 5.

  Moreover, even if it is the same day, when the target person 5 performs a specific work or uses a specific product, the psychological state evaluation device 2 evaluates the mental state before and after the start. Thus, the subject person 5 can be notified of a change in fatigue.

  After the target person 5 finishes the work in the study or living room, the psychological state evaluation device 2 evaluates the psychological state using comfort, awakening, and fatigue as indices, so that the target person 5 or the house designer For example, it is possible to determine whether the study or living room is a suitable space for work in consideration of not only comfort and arousal but also fatigue. In addition, after the subject person 5 has finished sleeping in the bedroom, the psychological state evaluation device 2 evaluates the psychological state using comfort, arousal, and fatigue as indices, so that the subject person 5 and the like can feel The quality of sleep can be estimated by considering not only arousal but also fatigue.

  As described above, according to the present embodiment, the psychological state of the target person 5 is evaluated by evaluating the psychological state of the target person 5 using the biological information of the target person 5 as an index of the feeling of comfort, arousal, and fatigue. The evaluation accuracy of the state can be increased.

  Moreover, according to this embodiment, by using the psychological model memorize | stored in the memory | storage part 27, the comfortable feeling used as an index of a psychological state, an arousal feeling, and a feeling of fatigue can be estimated easily.

  Furthermore, according to the present embodiment, the fatigue feeling is estimated with more accuracy by estimating the fatigue feeling using a plurality of categories of biological information such as the first biological information, the second biological information, and the third biological information. Can be estimated.

  In particular, the causal relationship between fatigue and biochemical biological information (third biological information) is high. In this embodiment, the fatigue is further estimated by using the third biological information to estimate the fatigue. It can be estimated with high accuracy.

  In the present embodiment, the third biological information is information obtained from the third physiological reaction measured using the saliva of the target person 5. Thereby, compared with the case where the third physiological reaction is measured using the blood or urine of the target person 5, the burden on the target person 5 at the time of measurement can be reduced, so that comfort, arousal or fatigue It can reduce that a feeling changes with measurement. As a result, the psychological state of the target person 5 can be accurately evaluated.

  In the present embodiment, a psychological model is selected according to the attribute information of the target person 5, and a psychological state is evaluated by estimating a feeling of comfort, a feeling of awakening, and a feeling of fatigue using this psychological model. Thereby, evaluation suitable for the attribute of the target person 5 can be realized.

  In particular, in the present embodiment, the attributes of the target person 5 can be specified by gender, age, and personality characteristics, so that a psychological model that is more suitable for the target person 5 can be selected. Thereby, a more appropriate psychological state suitable for the target person 5 can be evaluated.

  Moreover, in this embodiment, since the selection part 262 can re-select a psychological model, a psychological state can be evaluated using various psychological models, As a result, more suitable according to the object person 5 An evaluation result that evaluates a psychological state can be obtained.

  Furthermore, according to this embodiment, since the psychological model is a model statistically determined under a certain condition, the psychological state of the target person 5 under the certain condition can be evaluated with higher accuracy.

  According to the present embodiment, by controlling the stimulation device 4 to give a stimulus to the target person 5, not only the psychological state of the target person 5 can be evaluated but also changed.

  Further, according to the present embodiment, the output unit 24 outputs the psychological state of the target person 5, thereby allowing the target person 5 or the operator to recognize the evaluation result in substantially real time. For example, the psychological state of the target person 5 can be visually displayed with a three-dimensional model.

(Embodiment 2)
The psychological state evaluation system 1 according to the second embodiment is different from the psychological state evaluation system 1 according to the first embodiment in that a psychological state is evaluated using a psychological model corresponding to a combination of personality characteristics and a biometric index. In addition, about the component similar to the psychological state evaluation system 1 of Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  The biometric index used in the present embodiment is an index obtained from specific biometric information of the target person 5. In the present embodiment, a personality score obtained by quantifying personality characteristics is used. The personality score is, for example, characteristic anxiety obtained from STAI.

  The storage unit 27 of the present embodiment stores a psychological model corresponding to the combination of the personality characteristic and the biological index. Note that description of functions similar to those of the storage unit 27 of the first embodiment is omitted.

  The information acquisition unit 21 of this embodiment acquires specific biological information. As specific biological information, the skin potential level of the target person 5 is used. Note that a description of the same functions as those of the information acquisition unit 21 of Embodiment 1 is omitted.

  The selection unit 262 of the present embodiment includes a first comparison unit that compares a personality score and a threshold, a calculation unit that calculates a biometric index from specific biometric information, and a second comparison that compares the biometric index and the threshold. Perform each function with the department.

  For example, the first comparison unit compares the personality score and the first threshold value, and compares the personality score and the second threshold value (> first threshold value). As a result, the personality score is classified as being below the first threshold, above the first threshold, below the second threshold, or above the second threshold.

  The calculation unit calculates a value obtained by subtracting the previously acquired specific biological information from the specific biological information acquired this time as a biological index.

  For example, the second comparison unit compares the biometric index with a third threshold value, and compares the biometric index with a fourth threshold value (> third threshold value). As a result, the biometric index is classified as being less than or equal to the third threshold, greater than the third threshold, less than the fourth threshold, or greater than or equal to the fourth threshold.

  Such a selection unit 262 selects a psychological model corresponding to the combination of the personality characteristic set by the attribute setting unit 261 and the biometric index calculated by the calculation unit from the storage unit 27. For example, when the personality score is equal to or lower than the first threshold and the biometric index is equal to or lower than the third threshold, the selection unit 262 selects the first psychological model from the storage unit 27. When the personality score is greater than or equal to the second threshold and the biometric index is greater than or equal to the fourth threshold, the selection unit 262 selects the second psychological model from the storage unit 27. In other cases, the selection unit 262 selects the third psychological model from the storage unit 27. The first psychological model, the second psychological model, and the third psychological model are different models. Note that description of functions similar to those of the selection unit 262 of the first embodiment is omitted.

Next, a psychological state evaluation method using the psychological state evaluation system 1 according to the present embodiment will be described with reference to FIG. First, the personality characteristic of the target person 5 is input to the input unit 23 by the target person 5 or an operator (S11), and the attribute setting unit 261 of the control unit 26 sets the personality characteristic. Thereafter, the measurement device 3 measures a physiological response, and the information acquisition unit 21 acquires biological information (S12). Thereafter, the selection unit 262 calculates a biometric index (S13). Thereafter, the selection unit 262 selects a psychological model corresponding to the combination of the personality characteristic and the biometric index set by the attribute setting unit 261 from the plurality of psychological models stored in the storage unit 27 (S14). Thereafter, the information acquisition unit 21 performs data processing on the physiological response measured by the measuring device 3 (S15). Thereafter, psychological state evaluation unit 22 applies the biometric information from the psychological model information acquiring unit 21 selected in step S 14, to assess the psychological state by estimating the fatigue and comfort arousal feeling ( S16). Thereafter, the output unit 24 outputs the evaluation result of the psychological state evaluation unit 22 (S17).

  From the above description, the psychological model greatly depends on the combination of the personality characteristic and the biological index (an index obtained from specific biological information). In this embodiment, since an appropriate psychological model can be selected according to the combination of the personality characteristic of the target person 5 and the biometric index, the evaluation accuracy of the psychological state can be improved.

DESCRIPTION OF SYMBOLS 1 Psychological state evaluation system 2 Psychological state evaluation apparatus 21 Information acquisition part 22 Psychological state evaluation part 24 Output part 25 Apparatus control part 261 Attribute setting part 262 Selection part 27 Memory | storage part 3 Measuring apparatus 4 Stimulation apparatus 5 Target person

Claims (11)

An information acquisition unit for acquiring biological information of the target person;
A psychological state evaluation unit that evaluates the psychological state of the target person using the biological information acquired by the information acquisition unit as an index of comfort, arousal, and fatigue of the target person ;
A storage unit for storing a psychological model representing a relationship between the biological information and the psychological state;
An attribute setting unit for setting attribute information of the target person;
A selection unit for selecting the psychological model ,
The psychological model includes a comfort feeling model representing a relationship between the biological information and the comfort feeling, a wakeful feeling model representing a relation between the biological information and the arousal feeling, and the biological information and the fatigue feeling. Including a fatigue model representing the relationship,
The attribute information includes at least personality characteristics;
The storage unit stores the psychological model in association with a combination of the personality characteristic and a biological index obtained from specific biological information,
The information acquisition unit acquires the specific biological information,
The selection unit receives the psychological model corresponding to a combination of the personality characteristic set by the attribute setting unit and the biometric index obtained from the specific biometric information acquired by the information acquisition unit from the storage unit. Selected,
The psychological state evaluation unit estimates the comfort by applying the biological information acquired by the information acquisition unit to the comfort model of the psychological model selected by the selection unit, and the selection unit Applying the biological information acquired by the information acquisition unit to the wakefulness model to the wakefulness model of the psychological model selected in (2), estimating the wakefulness, and selecting by the selection unit A psychological state evaluation apparatus that estimates the fatigue feeling by applying the biometric information acquired by the information acquisition unit to the fatigue model of the psychological model . The information acquisition unit includes, as the biological information, first biological information of the target person's autonomic nervous system, second biological information of the central nervous system of the target person, and third of the biochemical system of the target person. The psychological state evaluation apparatus according to claim 1, wherein two or more pieces of biological information are acquired. The information acquisition unit acquires at least the third biological information,
The psychological state evaluation unit estimates the feeling of fatigue using the third biological information acquired by the information acquisition unit.
The psychological state evaluation apparatus according to claim 2. The information acquisition unit acquires the first biological information, the second biological information, and the third biological information as the biological information,
The psychological state evaluation unit estimates the feeling of fatigue using the first biological information, the second biological information, and the third biological information acquired by the information acquisition unit.
The psychological state evaluation apparatus according to claim 3. The psychological state evaluation apparatus according to claim 3 or 4, wherein the information acquisition unit acquires the third biological information from a physiological reaction measured using saliva of the target person. The psychological state evaluation apparatus according to claim 1, wherein the selection unit has a function of reselecting the psychological model. The apparatus control part which controls the irritation | stimulation apparatus which gives a stimulus to the said subject person so that the said psychological state may be changed according to the evaluation result of the said psychological state evaluation part is provided. The psychological state evaluation apparatus of Claim 1. The psychological state evaluation apparatus according to claim 1, further comprising an output unit that outputs an evaluation result of the psychological state evaluation unit. The psychological state evaluation apparatus according to any one of claims 1 to 8,
A measuring device for measuring a physiological response of the target person;
A psychological state evaluation system characterized by comprising: The psychological state evaluation system according to claim 9, wherein the measurement device measures the physiological reaction using saliva of the target person. Computer
An information acquisition unit for acquiring biological information of the target person,
A psychological state evaluation unit that evaluates the psychological state of the target person using the biological information acquired by the information acquisition unit as an index of comfort, arousal, and fatigue of the target person,
A storage unit for storing a psychological model representing a relationship between the biological information and the psychological state;
An attribute setting unit for setting attribute information of the target person, and
A program for functioning as a selection unit for selecting the psychological model,
The psychological model includes a comfort feeling model representing a relationship between the biological information and the comfort feeling, a wakeful feeling model representing a relation between the biological information and the arousal feeling, and the biological information and the fatigue feeling. Including a fatigue model representing the relationship,
The attribute information includes at least personality characteristics;
The storage unit stores the psychological model in association with a combination of the personality characteristic and a biological index obtained from specific biological information,
The information acquisition unit acquires the specific biological information,
The selection unit receives the psychological model corresponding to a combination of the personality characteristic set by the attribute setting unit and the biometric index obtained from the specific biometric information acquired by the information acquisition unit from the storage unit. Selected,
The psychological state evaluation unit estimates the comfort by applying the biological information acquired by the information acquisition unit to the comfort model of the psychological model selected by the selection unit, and the selection unit Applying the biological information acquired by the information acquisition unit to the wakefulness model to the wakefulness model of the psychological model selected in (2), estimating the wakefulness, and selecting by the selection unit The fatigue information is estimated by applying the biometric information acquired by the information acquisition unit to the fatigue model of the psychological model.
program.

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