JP2007307294A - Cosmetic evaluation system and cosmetic evaluation method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system and a method for evaluation of cosmetics evaluating psychological influences given to people by cosmetics easily and accurately. <P>SOLUTION: The cosmetic evaluation system consists of an autonomic nerve activity measuring device 10 for detecting the autonomic nerve activity, a central nerve activity measuring device 20 for detecting the central nerve activity, a means 11 for analyzing the result detected by the autonomic nerve activity measuring device 10, a means 21 for analyzing the result detected by the central nerve activity measuring device 20, and a means 30 for evaluating cosmetics from the analytic results of the above means 11 and 21. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cosmetic evaluation system and a cosmetic evaluation method that can easily and accurately evaluate the psychological effects of cosmetics on people.

  In general, the psychological effects of cosmetics on the feeling of use and container design are evaluated by sensory evaluation methods. However, since sensory evaluation has poor objectivity, there is a disadvantage that psychological influence cannot be accurately evaluated.

  In order to solve this problem, a method of evaluating cosmetics by measuring an electroencephalogram sensitivity spectrum (for example, see Patent Document 1) has been proposed. Conventionally, as an apparatus for measuring an electroencephalogram, an apparatus for measuring the intensity of an α wave as an active state of the brain, or an apparatus for measuring a time (an electroencephalogram appearing around 300 msec) when the brain reacts when a stimulus is given (P -300), a device (CNV) for measuring contingent negative fluctuations is known.

  In P-300, for example, when a red or blue figure is randomly projected on the screen of the display device, the probability that red is displayed is set higher than the probability that blue is displayed, and blue is displayed. A task (task) such as pressing a button only is given, and the time required for the brain to react to it after the blue color appears (an electroencephalogram that appears around 300 msec) is detected. It reflects a person's selective attention and is known to respond faster when relaxed.

  In CNV, for example, an electroencephalogram that is expressed by expecting to turn blue when it stops at a red signal and that reflects an anticipated psychological state is detected. For example, in CNV, a red graphic and a blue graphic are alternately displayed on the screen of the display device at regular intervals, and a task (task) is given such as pressing a button when a blue graphic appears. An electroencephalogram expressed by expecting to exit is detected. This is called negative fluctuation because the electroencephalogram moves in the negative direction, and it is known that the more negative, the greater the change to negative.

As a comfort measurement method, a method using the balance of autonomic nerve activity as an index (for example, see Patent Document 2) has been proposed.
JP 2000-354588 A JP 2000-210290 A

However, the technique described in Patent Document 1 has a disadvantage that it is complicated and time-consuming since it is necessary to measure an electroencephalogram sensitivity spectrum. In particular, when many evaluation objects are evaluated, it has been a problem that the measurement of the electroencephalogram sensitivity spectrum is complicated and time-consuming.
In addition, since the psychological influence cannot be sufficiently grasped only by measuring the electroencephalogram sensitivity spectrum, the technology described in Patent Document 1 is insufficient in the reliability of the evaluation of the psychological influence, and the accuracy of the evaluation is improved. There was a need to improve.

For example, when measuring the intensity of an α wave as an electroencephalogram, since the alpha wave in the frontal lobe that controls emotional changes is weak, integration for measuring the alpha wave in the frontal lobe is required, and the brain's fast response (for example, 2 It is difficult to capture changes that occur in seconds within minutes.
Also, when measuring brain waves using CNV or P-300, give some task (task) to evaluate, but if you give a task such as seeing or touching something, The psychological effects of giving tasks could not be fully captured.
As described above, in the electroencephalogram measurement, a psychological change in a short time and a psychological change when a task is given cannot be sufficiently captured.

  Further, in the technique described in Patent Document 2, only the balance of autonomic nerve activity is used as an index, but the psychological influence cannot be sufficiently captured only by measuring autonomic nerve activity. For this reason, in the technique described in Patent Document 2, the reliability of the evaluation of psychological effects is insufficient, and it has been desired to improve the accuracy of the evaluation.

  This invention is made | formed in view of the said situation, and it aims at providing the cosmetics evaluation system and cosmetics evaluation method which can evaluate the psychological influence which cosmetics has on a person easily and accurately.

  The present inventor has conducted extensive research to achieve the above object, and can use the results of measuring autonomic nerve activity and central nerve activity to easily and accurately evaluate the psychological effects of cosmetics on humans. I found it.

  The cosmetic evaluation system of the present invention analyzes an autonomic nerve activity measuring device that detects autonomic nerve activity, a central nerve activity measuring device that detects central nerve activity, and an autonomic nerve activity detection result detected by the autonomic nerve activity measuring device. Autonomic nervous activity analyzing means, central nervous activity analyzing means for analyzing the central nervous activity detection results detected by the central nervous activity measuring device, and the analysis results analyzed by the autonomic nervous activity analyzing means and the central nervous activity analyzing means Evaluation means for evaluating cosmetics based on the above.

  In the present invention, the cosmetic refers to a cosmetic container and / or contents contained in the container.

In the cosmetic evaluation system described above, the autonomic nerve activity measuring device may measure parasympathetic nerve activity.
Moreover, in said cosmetics evaluation system, the said autonomic nerve activity measuring apparatus shall measure the spectrum of heart rate variability.

In the cosmetic evaluation system, the central nervous activity measuring device may measure cerebral blood dynamics.
In the cosmetic evaluation system, the central nervous system activity measuring device may measure the oxygenated hemoglobin concentration and / or the total hemoglobin concentration by near infrared spectroscopy.

  In the cosmetic evaluation system, the autonomic nerve activity analyzing means analyzes whether the autonomic nerve activity is enhanced or suppressed from the autonomic nerve activity detection result, and the central nerve activity analyzing means includes , Analyzing whether the central nervous activity is enhanced or sedated from the detection result of the central nervous activity, and the evaluation means classifies into four types of evaluation results based on the combination of the analysis results be able to.

  Further, the cosmetic evaluation method of the present invention includes an autonomic nerve activity detecting step for detecting autonomic nerve activity when the cosmetic is presented to the subject by the autonomic nerve activity measuring device, and presenting the cosmetic to the subject by the central nerve activity measuring device. A central nervous activity detection step for detecting the central nervous activity when detected, an autonomic nervous activity analysis step for causing the autonomic nervous activity analysis means to analyze an autonomic nerve activity detection result detected by the autonomic nerve activity measuring device, and the central nerve A central nerve activity analysis step for causing the central nerve activity analysis means to analyze the detection result of the central nerve activity detected by the activity measuring device, and based on the analysis result analyzed by the autonomic nerve activity analysis means and the central nerve activity analysis means And an evaluation step for causing the evaluation means to evaluate the cosmetic.

  In the cosmetic evaluation method, in the autonomic nerve activity analyzing step, the autonomic nerve activity analyzing means analyzes whether the autonomic nerve activity is enhanced or suppressed from the autonomic nerve activity detection result, and the central nervous activity is analyzed. In the analysis step, the central nerve activity analysis means is analyzed based on the detection result of the central nerve activity whether the central nerve activity is enhanced or sedated, and in the evaluation step, the evaluation means is based on the combination of the analysis results. It can be set as the method of making it classify | categorize into four types of evaluation results.

  In the cosmetic evaluation method, the autonomic nerve activity detection step and the central nerve activity detection step can be performed simultaneously.

  In the cosmetic evaluation system and cosmetic evaluation method of the present invention, the evaluation means evaluates the cosmetic based on the analysis results analyzed by the autonomic nerve activity analysis means and the central nerve activity analysis means, so that humans can feel the external stimulus. Stimulation given by cosmetics to at least one of the five senses of sight, hearing, smell, taste, and touch can be accurately reflected in the evaluation results, and the psychological state of the person evaluating the cosmetics is accurately reflected in the evaluation results. It is reflected in.

Therefore, the cosmetic evaluation system and the cosmetic evaluation method of the present invention make the cosmetics more effective for humans compared to the conventional technology that attempts to capture psychological effects only from the measurement of the electroencephalogram sensitivity spectrum or the measurement of the autonomic nerve activity. The psychological influence to be given can be evaluated with high accuracy. Moreover, the cosmetic evaluation system and the cosmetic evaluation method of the present invention can evaluate the psychological effects of cosmetics on humans without measuring a complicated and time-consuming brain wave sensitivity spectrum. Compared to conventional technologies that try to capture the impact, it can be easily evaluated.
Further, in the cosmetic evaluation system and the cosmetic evaluation method of the present invention, since the evaluation means evaluates the cosmetic based on the analysis result analyzed by the autonomic nerve activity analysis means and the central nerve activity analysis means, compared with the sensory evaluation method, Objective evaluation results can be obtained.

  Cosmetics that can be evaluated by the cosmetic evaluation system and cosmetic evaluation method of the present invention include cosmetic containers and contents such as body lotions, creams, and lipsticks, packages, and the like, and stimulate at least one of the five senses. Any cosmetic product may be used as long as it can be given. Specifically, for example, a body lotion container that is a container, a body lotion that is a content, a cosmetic box that packages a body lotion container that is a package, and the like are included. Further, the cosmetic evaluation system and cosmetic evaluation method of the present invention include, for example, evaluation of the shape, color, feel, ease of use, etc. of cosmetic containers, the feeling of use and appearance of cosmetic contents, fragrance, makeup products, etc. It can be applied to the evaluation of the appearance and taste of the skin after applying this cosmetic. In addition, by using the evaluation results obtained by using the cosmetic evaluation system and cosmetic evaluation method of the present invention, it is possible to easily and appropriately design cosmetic prescriptions and container / package designs, etc. It is possible to design cosmetics that can impart psychological effects.

  Moreover, in said cosmetics evaluation system, an autonomic nerve activity measuring apparatus shall measure a parasympathetic nerve activity, and can measure autonomic nerve activity easily with sufficient precision. Furthermore, since the autonomic nerve activity measuring device measures the spectrum of heartbeat variability, the parasympathetic nerve activity can be easily and accurately measured.

Further, in the cosmetic evaluation system, the central nervous activity measuring device measures cerebral blood dynamics, whereby the central nervous activity can be easily and accurately measured. Furthermore, since the central nervous system activity measuring device measures oxyhemoglobin concentration and / or total hemoglobin concentration by near-infrared spectroscopy, cerebral blood dynamics can be easily and accurately measured.
In addition, when the central nervous activity measuring device measures cerebral blood dynamics, it can be equipped with a small input device such as a probe and can measure even while moving the body. While detecting activity, it becomes possible to detect autonomic nerve activity at the same time. Therefore, the cosmetic can be evaluated in a short time. Furthermore, since the central nervous system activity and autonomic nervous activity at the same time can be detected, it is possible to more accurately grasp the psychological effects of cosmetics on people, and the accuracy of cosmetic evaluation can be significantly improved. .

  Further, in the cosmetic evaluation system, the autonomic nerve activity analysis means analyzes whether the autonomic nerve activity is enhanced or suppressed from the autonomic nerve activity detection result, and the central nerve activity analysis means includes: When analyzing whether the central nervous activity is enhanced or sedated from the detection result of the central nervous activity, and the evaluation means classifies into four types of evaluation results based on the combination of the analysis results The psychological effects of cosmetics on people can be easily and accurately evaluated.

  Further, in the cosmetic evaluation method described above, the cosmetic can be evaluated in a short time by adopting a method in which the autonomic nerve activity detection step and the central nerve activity detection step are performed simultaneously. Furthermore, the central nervous system activity and autonomic nervous activity at the same point will be detected, the psychological effects of cosmetics on humans can be captured more accurately, and the accuracy of cosmetic evaluation can be significantly improved. .

Next, embodiments of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the embodiments described below.
FIG. 1 is a schematic diagram for explaining an example of the cosmetic evaluation system of the present invention. The cosmetic evaluation system shown in FIG. 1 includes an autonomic nerve activity measuring device 10, an autonomic nerve activity analyzing unit 11, a central nerve activity measuring device 20, a central nerve activity analyzing unit 21, and an evaluating unit 30.

Any device can be used as the autonomic nerve activity measuring device 10 as long as it can detect autonomic nerve activity, and examples thereof include a device that measures a spectrum (electrocardiogram) of heartbeat variability. As an apparatus for measuring the spectrum of heart rate variability, for example, a polygraph telemeter ECG manufactured by Dainippon Pharmaceutical Co., Ltd. can be used.
The autonomic nerve activity analyzing means 11 analyzes whether the autonomic nerve activity is enhanced or suppressed by inputting the autonomic nerve activity detection result output from the autonomic nerve activity measuring device 10.
For example, when the device for measuring the heartbeat fluctuation spectrum is used as the autonomic nerve activity measuring device 10, the device for analyzing the autonomic nerve activity detection result based on the heartbeat power spectrum method is used as the autonomic nerve activity analyzing means 11. Can do.

By using the heart rate power spectrum method, it is possible to analyze the frequency of heart rate variability (fluctuation) of a heart rate interval (RR interval (msec)) within a predetermined time, and a specific frequency band obtained by the analysis can be analyzed. Changes in autonomic (sympathetic and parasympathetic) activity can be known from intensity.
As the autonomic nerve activity analyzing means 11 for analyzing the autonomic nerve activity detection result based on the heart rate power spectrum method, specifically, for example, an FFT processing (fast Fourier transform) method or an autonomic nerve activity analysis software is used. Analyzing the detection result of autonomic nerve activity using Fraclet WT manufactured by Nippon Pharmaceutical Co., Ltd., etc., and obtaining the HF (high frequency band) component can be used.

  The HF (high frequency band) component is an integral value of the heart rate power spectrum in the high frequency band (0.15 to 0.40 Hz), and is a value indicating the activity of parasympathetic nerve activity. In this embodiment, when the cosmetics are presented to the subject and before the cosmetics are presented to the subject (at rest), when the value of the HF component increases, the autonomic nerve activity analysis means 11 performs parasympathetic nerve activity. Is judged to have increased. In addition, when the cosmetics are presented to the subject and before the cosmetics are presented to the subject (at rest), the parasympathetic nerve activity is suppressed by the autonomic nerve activity analyzing means 11 when the value of the HF component is reduced. To be judged. In addition, when the cosmetic is presented to the subject and before the cosmetic is presented to the subject (at rest), it is determined that the greater the difference in the HF component value, the greater the psychological influence.

Here, the determination of enhancement / suppression by the autonomic nerve activity analyzing means 11 will be specifically described with reference to FIG.
FIG. 2 is a graph showing an example of the analysis result of the autonomic nerve activity analyzing means, and is a graph showing the relationship between time and HF (high frequency band) components. FIG. 2 shows the HF component when the cosmetics to be evaluated are presented for 120 seconds to a subject who has been rested for 20 seconds. In the example shown in FIG. 2, the HF component (m / m) during the presentation of the cosmetic to be evaluated when the average value of the HF component for 20 seconds before the cosmetic is presented is 0 (120 seconds). s ² ) is shown as a relative value.

Here, the determination of whether the autonomic nerve activity is enhanced or suppressed is performed by the autonomic nerve activity analyzing means 11 when the cosmetics are presented to the subject and before the cosmetics are presented to the subject. This can be done by calculating the average of the values and comparing them.
For example, in the example shown in FIG. 2, the average value of the HF component for 20 seconds before presenting the cosmetic product is 3.989 m / s ² , and the HF during the presentation of the cosmetic product to be evaluated (120 seconds). The average value of the component is 12.545 m / s ² , and it is determined that the HF component is higher and the parasympathetic nerve activity is enhanced while the cosmetic is presented to the subject than before the cosmetic is presented to the subject. it can.

The determination of whether the autonomic nerve activity is enhanced or suppressed is made by determining the value of the HF component in a predetermined time range when the autonomic nerve activity analyzing means 11 presents the cosmetic to the subject and before presenting the cosmetic to the subject. The average value of the HF component when the cosmetic is presented to the subject when the average value of the HF component before the cosmetic is presented to the subject is assumed to be 100%. You may carry out by making it compare.
For example, in the example shown in FIG. 2, the average of the HF components during the presentation of the cosmetics to be evaluated (120 seconds) when the average value of the HF components for 20 seconds before presenting the cosmetics is 100%. The value is 125.7%, and it can be determined that the parasympathetic nerve activity was enhanced.

  Here, since the living body is sedated when the parasympathetic nerve activity is enhanced, it can be determined that the living body is sedated when the parasympathetic nerve activity is enhanced. Conversely, when parasympathetic nerve activity is suppressed, it can be determined that the living body is in an active state.

  Note that the autonomic nerve activity measuring device 10 and the autonomic nerve activity analyzing means 11 may be separate, but may be integrated.

  The central nervous activity measurement device 20 may be any device that can detect the central nervous activity, and for example, a device that measures cerebral blood dynamics can be used. A change in brain oxygen consumption, that is, a change in cerebral blood flow (cerebral hemodynamics) can be considered to indicate a change in brain activity, and can be detected as a change in oxyhemoglobin concentration and / or total hemoglobin concentration. As the central nervous activity measuring device 20, specifically, a cerebral blood dynamic measuring device (NIRO-200: trade name) manufactured by Hamamatsu Photonics Co., Ltd. can be preferably used.

As an apparatus for measuring cerebral hemodynamics, for example, a device for measuring the frontal lobe oxyhemoglobin concentration and / or the total hemoglobin concentration by near infrared spectroscopy (NIRS) can be mentioned. Near-infrared spectroscopy is based on the fact that hemoglobin has absorption specific to the near-infrared, and from the intensity difference between near-infrared incident light and reflected light, oxyhemoglobin, reduced hemoglobin, total hemoglobin (with oxyhemoglobin and Changes in the concentration of reduced hemoglobin) can be observed, and cerebral hemodynamics can be measured easily and accurately.
In addition, when using a device that measures by near-infrared spectroscopy, a device with a small input device such as a probe can be used, and measurement can be performed while moving the body. Autonomic nerve activity can be detected at the same time

Here, a method for measuring the frontal lobe oxyhemoglobin concentration and / or the total hemoglobin concentration by near-infrared spectroscopy will be described with reference to FIG. FIG. 3 is a schematic diagram for explaining a situation where the oxyhemoglobin concentration and / or the total hemoglobin concentration in the frontal lobe is measured by near infrared spectroscopy.
In FIG. 3, reference numeral 5 indicates a human head, and reference numeral 51 indicates brain tissue. The head 5 is provided with an irradiation probe 53 and a detection probe 52 with a predetermined interval of about 4 cm, for example. In FIG. 3, the blood flow of the brain tissue 51 at a depth D of about 3 cm subcutaneously is detected by the near infrared light detected by the detection probe 52 when the near infrared light of 700 nm to 950 nm is emitted from the irradiation probe 53. Measured. Then, the blood flow in the brain tissue 51 is increased, the hemoglobin concentration is increased, and as a result, the near-infrared light is absorbed and attenuated. 51 changes in blood flow are calculated.

  The device for measuring cerebral hemodynamics is not limited to the above-described device for measuring by near infrared spectroscopy (NIRS). For example, a positron emission tomography device (positron emission tomography (PET)) Alternatively, an apparatus such as a nuclear magnetic resonance functional imaging apparatus (fMRI) may be used. When PET or fMRI is used, cerebral hemodynamics can be measured with very high accuracy. In particular, fMRI is preferable because of high time resolution and less burden on the subject.

The central nervous activity analyzing means 21 analyzes whether the central nervous activity is enhanced or sedated by inputting the central nervous activity detection result output from the central nervous activity measuring device 20. For example, when the central nervous activity measuring device 20 is a device that measures the frontal lobe oxyhemoglobin concentration and / or total hemoglobin concentration by near-infrared spectroscopy, the central nervous activity analysis means 21 is oxyhemoglobin concentration and / or What calculates the variation | change_quantity of the cerebral blood flow from total hemoglobin density | concentration can be used. In this case, the cerebral blood flow is shown as a change amount with respect to the initial value. When the cerebral blood flow decreases, the cerebral activity is sedated, and when the cerebral blood flow increases, the cerebral activity is enhanced.
Specifically, a PC (personal computer) can be used as the central nervous activity analysis means 21. The function as the central nervous activity analysis means 21 is realized by loading a program for realizing these functions into a memory provided in the PC and executing it by a CPU (central processing unit). .

  In the present embodiment, when the cosmetic product is presented to the subject and before the cosmetic product is presented to the subject (at rest), and the oxyhemoglobin concentration and / or the total hemoglobin concentration are reduced, the central nerve It is determined by the activity analysis means 21 that the brain activity has been sedated. When the oxyhemoglobin concentration and / or the total hemoglobin concentration increase, the central nervous activity analysis means 21 determines that the brain activity has been enhanced. In addition, when cosmetics are presented to the subject and before cosmetics are presented to the subject (at rest), the greater the difference in oxyhemoglobin concentration and / or total hemoglobin concentration, the greater the psychological impact Is done.

Here, the determination of enhancement / sedation by the central nervous activity analyzing means 21 will be specifically described with reference to FIG.
FIG. 4 is a graph showing an example of the result of detecting the central nervous activity, and is a graph showing the relationship between time and the total hemoglobin concentration. FIG. 4 shows the total hemoglobin concentration when the cosmetics to be evaluated are presented for 120 seconds to a subject who has been rested for 20 seconds. In the example shown in FIG. 4, the total hemoglobin concentration (120 seconds) during the presentation of the cosmetics to be evaluated when the average value of the total hemoglobin concentration for 20 seconds before presenting the cosmetics is 0 (120 seconds) μmol / L) is shown as a relative value.

Here, whether the central nervous activity is enhanced or sedated is determined by the central nervous activity analysis means 21 when the cosmetic is presented to the subject and the oxygenated hemoglobin concentration in a predetermined time range before the cosmetic is presented to the subject. The average value of the total hemoglobin concentration can be calculated and compared.
For example, in the example shown in FIG. 4, the average value of the total hemoglobin concentration for 20 seconds before presenting cosmetics is 0.112 μmol / L, and while the cosmetics to be evaluated are presented (120 seconds). The average value of total hemoglobin concentration is 0.399 μmol / L, and the total hemoglobin concentration is higher and the central nervous system activity is increased while cosmetics are presented to the subject than before cosmetics are presented to the subject. It can be judged that it was done.
Whether the central nervous activity is enhanced or sedated is determined by the central nervous activity analyzing means 21 when the cosmetic is presented to the subject and the oxygenated hemoglobin concentration in a predetermined time range before the cosmetic is presented to the subject. The average value of the total hemoglobin concentration is calculated, and the oxygenated hemoglobin when the cosmetic is presented to the subject when the average value of the oxygenated hemoglobin concentration and / or the total hemoglobin concentration before the cosmetic is presented to the subject is zero. You may carry out by calculating and comparing the average value of a density | concentration and / or the value of a total hemoglobin density | concentration.
For example, in the example shown in FIG. 4, the total hemoglobin concentration during the presentation of the cosmetic to be evaluated (120 seconds) when the average value of the total hemoglobin concentration for 20 seconds before the cosmetic is presented is 0. The average value is 0.287 μmol / L, and it can be determined that the central nervous activity has been enhanced.

  The central nervous activity measuring device 20 and the central nervous activity analyzing means 21 may be separate, but may be integrated.

  The evaluation means 30 evaluates cosmetics based on the analysis results when the analysis results output from the autonomic nerve activity analysis means 11 and the central nerve activity analysis means 21 are input. It classify | categorizes into the evaluation results 1-4 of a kind.

  In the present embodiment, as shown in Table 1, the analysis result analyzed by the autonomic nerve activity analyzing means 11 is indicated by whether the parasympathetic nerve activity is enhanced or suppressed. Moreover, as shown in Table 1, the analysis result analyzed by the central nervous activity analyzing means 21 is shown by whether the brain activity is sedated or enhanced. Therefore, combinations of analysis results analyzed by the autonomic nerve activity analyzing means 11 and the central nerve activity analyzing means 21 are four kinds of evaluation results 1 to 4 shown in Table 1. Therefore, in this embodiment, the psychological influence which cosmetics gives to a person (subject) is classified into four types of evaluation results 1 to 4 shown in Table 1 and evaluated. When the evaluation results 1 to 4 are replaced with specific expressions of psychological effects of cosmetics on people, (evaluation result 1) relax (warm feeling), (evaluation result 2) clear (evaluation result 3 ) Feeling unpleasant, (Evaluation result 4) Exciting (feeling energetic) can be classified. Therefore, in this embodiment, the psychological influence that cosmetics has on a person is (evaluation result 1) relaxed (feels warm), (evaluation result 2) clear, (evaluation result 3) feels unpleasant, ( Evaluation results 4) The evaluation results can be classified into four types of evaluation results (exciting feeling).

  As the evaluation means 30, a PC (personal computer) provided with an input device such as a keyboard and a mouse can be used. The function as the evaluation unit 30 is realized by loading a program for realizing the function as the evaluation unit 30 into a memory provided in the PC and executing it by a CPU (central processing unit). . Moreover, it is desirable that a display device (monitor) made up of a CRT (Cathode Ray Tube) or a liquid crystal display is connected to the evaluation means 30. As the monitor, a monitor built in the PC or an externally connected monitor can be used. The PC is provided with input devices such as a keyboard and a mouse.

As the autonomic nerve activity analyzing means 11 and the central nerve activity analyzing means 21, a PC equipped with an input device such as a keyboard and a mouse can be used. In this case, the functions as the autonomic nerve activity analyzing unit 11 and the central nerve activity analyzing unit 21 are a program for realizing the functions as the autonomic nerve activity analyzing unit 11 and the central nerve activity analyzing unit 21 in a memory provided in the PC. It is assumed that the function is realized by being loaded and executed by a CPU (central processing unit).
Note that the PCs as the autonomic nerve activity analyzing means 11, the central nerve activity analyzing means 21, and the evaluating means 30 are separately provided, and the autonomic nerve activity analyzing means 11 and the evaluating means 30, the central nerve activity analyzing means 21 and the evaluating means, respectively. 30 may be connected using a signal input / output device, may be a single PC capable of realizing all functions, or may be an autonomic nerve activity analyzing means. 11. The first PC in which any two functions of the central nervous activity analysis means 21 and the evaluation means 30 can be realized, and the second PC in which the remaining one function can be realized, Connection may be made using a signal input / output device.

Next, a method for evaluating cosmetics using the cosmetic evaluation system shown in FIG. 1 will be described with reference to FIG. FIG. 5 is a flowchart for explaining an example of the cosmetic evaluation method of the present invention.
In order to evaluate cosmetics using the cosmetic evaluation system shown in FIG. 1, first, an autonomic nerve activity measuring device 10 and a central nerve activity measuring device 20 are attached to a subject, and the autonomic nerve activity measuring device 10 performs autonomic nerve activity. And the detection of the central nerve activity by the central nerve activity measuring device 20 is started. Next, the autonomic nerve activity measuring device 10 detects the autonomic nerve activity when the cosmetics to be evaluated are presented by showing or touching the cosmetics to the subject (autonomic nerve activity detecting step (S1)). At the same time, the central nervous activity is detected by the central nervous activity measuring device 20 (central nervous activity detection step (S3)).

After that, the detection result of the autonomic nerve activity detected and output by the autonomic nerve activity measuring device 10 is input to the autonomic nerve activity analyzing means 11 and analyzed (autonomic nerve activity analyzing step (S2)), and the central nerve activity is analyzed. The detection result of the central nervous activity detected and output by the measuring device 20 is input to the central nervous activity analysis means 21 and analyzed (central nervous activity analysis step (S4)).
In the present embodiment, in the autonomic nerve activity analyzing step (S2), the autonomic nerve activity analyzing means 11 is analyzed based on the detection result of the autonomic nerve activity to determine whether the autonomic nerve activity is enhanced or suppressed, and the central nerve activity analyzing step (S4). ), The central nervous activity analyzing means 21 analyzes whether the central nervous activity is enhanced or sedated from the detection result of the central nervous activity.

  Subsequently, the analysis result analyzed and output by the autonomic nerve activity analysis means 11 and the central nerve activity analysis means 21 is input to the evaluation means 30, and the psychological influence that the cosmetics have on the subject based on the analysis result by the evaluation means 30. However, corresponding to the four types of evaluation results 1 to 4 shown in Table 1 (Evaluation result 1) Relax (warm feeling), (Evaluation result 2) Clean, (Evaluation result 3) Feel unpleasant (Evaluation Result 4) It is classified as exciting (feeling of energy) (evaluation step (S5)).

In the cosmetic evaluation method of the present invention, the evaluation environment in which the autonomic nervous activity detection step (S1) and the central nervous activity detection step (S3) are performed is more preferably 5 to 40 ° C and 15 to 30 ° C. Even if the temperature is 40 ° C. or higher and 5 ° C. or lower, the psychological burden on the subject increases, and there is a possibility that stable results cannot be obtained.
Further, the humidity of the evaluation environment is preferably 20 to 70%, more preferably 40 to 60%. Even if the humidity is 70% or more and 20% or less, the subject's discomfort is high, and stable results may not be obtained.
Further, the evaluation environment is desirably a place where soundproofing equipment is installed in order to reduce stimulation from other than the evaluation target.

  In addition, the posture of the subject when performing the autonomic nerve activity detection step (S1) and the central nerve activity detection step (S3) is preferably a sitting position.

In the present embodiment, the time from the start of detection of the autonomic nerve activity by the autonomic nerve activity measuring device 10 and the detection of the central nerve activity by the central nerve activity measuring device 20 to the time when the cosmetic is presented to the subject. Is preferably 10 seconds to 5 minutes, more preferably 30 seconds to 3 minutes. If the detection time of the autonomic nerve activity and central nerve activity before presenting cosmetics to the subject is 10 seconds or less, the psychological state is not stable, so the accuracy of the evaluation may be insufficient. It becomes susceptible to stimuli other than those received from the subject.
Moreover, in order to improve the accuracy of evaluation, the cosmetics presented to the subject are collected, and after collection, the autonomic nerve activity is transferred to the autonomic nerve activity measuring device 10 for 10 seconds to 30 minutes, more preferably 30 seconds to 10 minutes. It is desirable to cause the central nervous activity measuring device 20 to detect the central nervous activity as well as to detect it. If the detection time after collecting the cosmetics presented to the subject is 10 seconds or less, the effect of improving the accuracy of the evaluation may not be obtained, and if it is 30 minutes or more, the time required for cosmetic evaluation becomes long, which is not preferable. In addition, when the accuracy of evaluation is sufficiently high, the cosmetics presented to the subject need not be collected.

  According to the cosmetic evaluation system and the cosmetic evaluation method of this embodiment, the evaluation means 30 is evaluated based on the analysis results analyzed by the autonomic nerve activity analysis means 11 and the central nerve activity analysis means 21, so that the cosmetic is evaluated. The psychological state of the subject is accurately reflected in the evaluation result, and the psychological influence of the cosmetics on the person can be accurately evaluated. And by using the obtained evaluation results, it is possible to easily and appropriately design cosmetic prescriptions and package designs according to the purpose, and to design cosmetics that can impart the intended psychological influence.

  In the cosmetic evaluation method, the autonomic nervous activity detection step (S1) and the central nervous activity detection step (S3) are described by way of example. However, the autonomic nervous activity detection step (S1) and the central nervous system activity detection step have been described. The neural activity detection step (S3) may be performed separately.

EXAMPLES Hereinafter, although an Example is shown and this invention is demonstrated more concretely, this invention is not limited to these.
"Examples 1-4"
<Evaluation of the feeling of body lotion>
Thirty female subjects in their 20s and 30s can be sound-insulated and enter an artificial climate room that can be set in an evaluation environment with a temperature of 25 ° C., a humidity of 50%, and an illuminance of 50 lx. As shown in FIG. 6, the input device of the central nervous activity measurement device shown below was attached to each subject.
FIG. 6 is a diagram for explaining how the input devices of the autonomic nerve activity measuring device and the central nerve activity measuring device are mounted. FIG. 6A is a diagram showing a wearing state of the input device of the autonomic nerve activity measuring device, and FIG. 6B is a diagram showing a wearing state of the input device of the central nerve activity measuring device.

  The input device 14 of the autonomic nerve activity measuring device shown in FIG. 6A includes two electrodes 12a and 12b, a ground 12c, and a transmitter 13 electrically connected to the electrodes 12a and 12b and the ground 12c by an electrode cable. And. The transmitter 13 wirelessly transmits an electrical signal that becomes a spectrum of heartbeat variability (electrocardiogram) to a receiver (not shown) provided in the autonomic nerve activity measuring apparatus. As shown in FIG. 6A, the input device 14 was attached to each subject by attaching the two electrodes 12a, 12b and the ground 12c to the chest of each subject.

  The input device 24 of the central nervous activity measuring apparatus shown in FIG. 6B is composed of two probes 22a and 22b. The probes 22a and 22b are electrically connected to the central nerve activity measuring device by an electrode cable 23. As shown in FIG. 6 (b), the input device 24 was attached to each subject by attaching the two probes 22a and 22b to the subject's forehead two places on the left and right of the forehead using double-sided tape, respectively.

  Thereafter, detection of autonomic nerve activity by the autonomic nerve activity measuring device and detection of central nerve activity by the central nerve activity measuring device were started, and the patient was rested for 3 minutes in the closed eye sitting position. Next, the body lotion of BL-1 to BL-4 shown below, which is a cosmetic product to be evaluated, is placed on the right palm of each subject with a pearl, and applied to the left forearm with a slow motion over 1 minute. The activity was detected by the autonomic nerve activity measuring device (autonomic nerve activity detecting step), and at the same time, the central nerve activity measuring device was detected by the central nerve activity measuring device (central nerve activity detecting step).

After that, the spectrum of heart rate variability for 1 minute before application of body lotion detected and output by the autonomic nerve activity measuring device (before application) and the spectrum of heart rate variability when body lotion is applied for 1 minute (application) The autonomic nerve activity detection result is input to the autonomic nerve activity analyzing means shown below, and the average value of the HF component values of the spectrum of heart rate variability (before application) and the spectrum of heart rate variability (during application) is calculated. By calculating and comparing, it was analyzed whether parasympathetic nerve activity, which is autonomic nerve activity, was enhanced or suppressed (autonomic nerve activity analysis step).
The results are shown in Table 2. In Table 2, the case where the average value of the HF component value was higher during the application than before the application was shown as + (enhancement), and the case where the average value was decreased was shown as-(suppression).

Also, the brain oxygenated hemoglobin concentration (before application) for 1 minute before the application of the body lotion detected and output by the central nervous system activity measuring device and the brain oxygenated hemoglobin concentration when the body lotion is applied for 1 minute. The result of CNS activity detection (in application) is input to the CNS activity analysis means shown below, and the average values of brain oxygenated hemoglobin concentration (before application) and brain oxygenated hemoglobin concentration (in application) are as follows: It was analyzed whether the brain activity, which is the central nervous activity, was enhanced or sedated by calculating the central nervous activity analysis means and comparing them (central nervous activity analysis step).
The results are shown in Table 2. In Table 2, the case where the average value of oxyhemoglobin concentration was higher during application than before application was indicated as + (enhanced), and the case where it was decreased was indicated as-(sedated).

Subsequently, the analysis result analyzed and output by the autonomic nerve activity analysis means and the central nerve activity analysis means is input to the evaluation means, and based on the analysis result by the evaluation means, the psychological influence that cosmetics has on each subject is It was classified into four types of evaluation results 1 to 4 shown in Table 1 (evaluation step).
The results are shown in Table 2. In addition, (Evaluation result 1) shown in Table 2 is relaxed (warm feeling), (Evaluation result 2) is refreshed, (Evaluation result 3) is unpleasant, (Evaluation result 4) is Each can be evaluated by exchanging it with excitement (feeling of being energized).

  In addition, after the end of the autonomic nerve activity detection step and the central nerve activity detection step, there are four types of feelings when the body lotion of BL-1 to BL4 is applied, relaxing, refreshing, feeling unpleasant, and exciting. A sensory evaluation was performed to allow the subject to select from the above. The results are shown in Table 2.

  In Examples 1 to 4, a polygraph telemeter ECG manufactured by Dainippon Pharmaceutical Co., Ltd. is used as the “autonomous nerve activity measuring device”, and a fractlet WT manufactured by Dainippon Pharmaceutical Co., Ltd. is used as the “autonomous nerve activity analyzing means”. The NIRO-200 manufactured by Hamamatsu Photonics Co., Ltd. was used as the “central nervous activity measurement device”, and a personal computer was used as the “central nervous activity analysis means”.

  In addition, each subject was explained in advance about the contents of the evaluation method and agreed to cooperate. All subjects were right-handed. In addition, in order to reduce the impact of psychological fluctuations caused by time by setting the evaluation date to avoid the luteal phase of the subject and instructing the subject to avoid excessive exercise and heavy stress work on the day of evaluation In addition, it was performed in the time zone from 9 o'clock to 11 o'clock or 2 o'clock to 4 o'clock. In addition, although two probes, which are input devices of the central nervous system activity measuring device, are attached to the left and right foreheads of each subject, since there is no difference between the measured values on the left and right, the subject is input from the probe on the right side of the forehead. The concentration of oxyhemoglobin was the target of the detection of CNS activity.

  The composition of the body lotion of BL-1 to BL-4 used in Examples 1 to 4 is shown below. In the following body lotion, no fragrance is blended so that there is no psychological influence by the fragrance. Moreover,% in a composition is the mass%.

BL-1;
Bentonite 3.0%
Dimethicone (10 c.s.) 20.0%
Polyoxyethylene / methylpolysiloxane copolymer 5.0%
Behenyl alcohol 2.0%
Sorbitan monooleate 1.5%
Hydrogenated lecithin 0.1%
Behenic acid 1.0%
1,3-butanediol 5.0%
Methylparaben 0.1%
Butylparaben 0.1%
Purified water 62.2%
Total 100.00%

BL-2;
Pyroglutamic acid isostearate polyoxyethylene hydrogenated castor oil (40E.O.)
0.8%
Triisopropanolamine 0.32%
Carboxyvinyl polymer 0.26%
Methylparaben 0.3%
Propylparaben 0.1%
Ethanol 5.0%
Xanthan gum 0.02%
Concentrated glycerin 5.0%
Purified water 88.2%
Total 100.00%

BL-3;
Plant-based squalane 3.0%
Decaglyceryl monoisostearate 2.3%
Concentrated glycerin 1.3%
Trimethylglycine 3.0%
Dipropylene glycol 5.0%
Acrylic acid / alkyl methacrylate copolymer solution 0.2%
Xanthan gum 0.05%
Triisopropanolamine 0.16%
Methylparaben 0.25%
Propylparaben 0.10%
Ethanol 3.0%
Purified water 81.64%
Total 100.00%

BL-4;
Decamethylcyclopentasiloxane 30.0%
Polyoxyethylene / methylpolysiloxane copolymer 2.0%
Methylparaben 0.2%
Propylparaben 0.1%
Bentonite 2.0%
1,3-butylene glycol 5.0%
Concentrated glycerin 10.0%
Purified water 50.7%
Total 100.00%

  As shown in Table 2, the evaluation results obtained by the cosmetic evaluation system and the cosmetic evaluation method of the present invention are almost consistent with the sensory evaluation, have excellent correlation with the sensory evaluation, and the cosmetic gives the person. It was confirmed that psychological effects could be evaluated with high accuracy.

"Examples 5-7"
<Evaluation of body lotion container design>
Except that the number of test subjects was 15, the input device of the autonomic nerve activity measurement device and the central nerve activity measurement device was attached to each subject in the same manner as in Example 1.

  Thereafter, detection of the autonomic nerve activity by the autonomic nerve activity measuring device and detection of the central nerve activity by the central nerve activity measuring device were started, and rested for 2 minutes in the closed eye sitting position and rested for 1 minute in the open eye sitting position. Next, the autonomic nerve activity measuring device detects the autonomic nerve activity when the body lotion container shown in FIG. 7, which is a cosmetic product to be evaluated, is shown to the subject for 1 minute (autonomic nerve activity detecting step), and at the same time, the central nerve activity The central nervous activity was detected by the measuring device (central nervous activity detection step).

  FIG. 7 is a view for explaining a body lotion container to be evaluated in Examples 5 to 7 of the present invention. The body lotion container 40 shown in FIG. 7 is made of a light blue resin, is a bottle type with a substantially circular shape in plan view, and a height of the cap 42 formed higher than the height of the container body 41. Further, in the body lotion container 40, as shown in FIG. 7, a ring-shaped decorative member 43 is provided on the outer periphery of the cap 42. The decorative member 43 is gold in the fifth embodiment, silver in the sixth embodiment, and the same color as the cap in the seventh embodiment.

After that, the spectrum of heart rate variability for 1 minute before viewing the container for body lotion detected and output by the autonomic nervous activity measurement device (before viewing) and the heart rate variability when looking at the body lotion container for 1 minute Autonomic nerve activity detection results, which are spectra (while watching), are input to the autonomic nerve activity analysis means shown below, and the heart rate variability spectrum (before viewing) and the heart rate variability spectrum (while watching), respectively. The average value of the HF component values (while watching) is calculated by letting the central nerve activity analysis means calculate the average value of the HF component values and the average value of the HF component values (before watching) is 100%. By calculating and comparing the rate of change% of values, it was analyzed whether parasympathetic nerve activity, which is autonomic nerve activity, was enhanced or suppressed (autonomic nerve activity analysis step).
The results are shown in Table 3. In Table 3, a numerical value of the rate of change% is shown, and when the average value of the HF component value is higher than when it is being viewed, it is + (enhanced), and when it is low, Shown as (suppression).

Also, the oxygenated hemoglobin concentration for 1 minute before viewing the body lotion container detected and output by the central nervous system measuring device (before viewing) and the oxygenated hemoglobin concentration when viewing the body lotion container for 1 minute ( The CNS activity detection results that are being viewed) are input to the CNS activity analysis means shown below, and the brain oxygenated hemoglobin concentration (before viewing) and brain oxygenated hemoglobin concentration (while viewing), respectively The average value of brain oxyhemoglobin concentration (while watching) is calculated and compared when the average value of oxyhemoglobin concentration (before viewing) is 0. Thus, it was analyzed whether the brain activity as the central nervous activity was enhanced or sedated (central nervous activity analysis step).
The results are shown in Table 3. Table 3 shows the numerical value of the oxyhemoglobin concentration in the brain before and during viewing, and the average value of oxyhemoglobin concentration during viewing was higher than before viewing. The case was shown as + (enhancement), and the case where it became low was shown as-(sedation).

Subsequently, the analysis result analyzed and output by the autonomic nerve activity analysis means and the central nerve activity analysis means is input to the evaluation means, and based on the analysis result by the evaluation means, the psychological influence that cosmetics has on each subject is It was classified into four types of evaluation results 1 to 4 shown in Table 1 and evaluated (evaluation step).
The results are shown in Table 3. It should be noted that (Evaluation result 2) shown in Table 3 can be refreshed, and (Evaluation result 4) can be replaced with excitement (feeling of energizing).

  In addition, after the end of the autonomic nerve activity detection step and the central nerve activity detection step, when the body lotion container to be evaluated in Examples 5 to 7 is viewed, sensory evaluation is performed to allow the subject to select the most exciting body lotion container. I did it. The results are shown in Table 3. In Table 3, the number of subjects who selected Exciting is shown as a result.

In Examples 5 to 7, “autonomous nerve activity measuring device”, “autonomous nerve activity analyzing means”, “central nerve activity measuring device”, and “central nerve activity analyzing means” are the same as those in Example 1. .
Moreover, also in Examples 5-7, as in Example 1, each subject explained the details of the evaluation method in advance and obtained cooperation consent. In addition, in order to reduce the impact of psychological fluctuations caused by time by setting the evaluation date to avoid the luteal phase of the subject and instructing the subject to avoid excessive exercise and heavy stress work on the day of evaluation In addition, the test was performed from 9 o'clock to 11 o'clock or from 2 o'clock to 4 o'clock. In addition, although two probes, which are input devices of the central nervous system activity measuring device, are attached to the left and right foreheads of each subject, since there is no difference between the measured values on the left and right, the subject is input from the probe on the right side of the forehead. The concentration of oxyhemoglobin was the target of the detection of CNS activity.

As shown in Table 3, the evaluation results obtained by the cosmetic evaluation system and the cosmetic evaluation method of the present invention are almost consistent with the sensory evaluation, and are found to be excellent in correlation with the sensory evaluation. .
It was also confirmed that the greater the difference between the absolute value of the parasympathetic activity change rate and the brain activity, the greater the psychological effect. From this, it was found that the degree of psychological influence can be evaluated by the numerical values of the analysis results analyzed by the autonomic nerve activity analysis means and the central nerve activity analysis means.

FIG. 1 is a schematic diagram for explaining an example of the cosmetic evaluation system of the present invention. It is the graph which showed an example of the analysis result of the autonomic nerve activity analysis means, and is the graph which showed the relationship between time and HF (high frequency band) component. FIG. 3 is a schematic diagram for explaining a situation where the oxyhemoglobin concentration and / or the total hemoglobin concentration in the frontal lobe is measured by near infrared spectroscopy. FIG. 4 is a graph showing an example of the result of detecting the central nervous activity, and is a graph showing the relationship between time and oxyhemoglobin concentration. FIG. 5 is a flowchart for explaining an example of the cosmetic evaluation method of the present invention. FIG. 6 is a diagram for explaining how the input devices of the autonomic nerve activity measuring device and the central nerve activity measuring device are mounted. FIG. 7 is a view for explaining a body lotion container to be evaluated in Examples 5 to 7 of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Autonomic nerve activity measuring device, 11 ... Autonomic nerve activity analysis means, 20 ... Central nerve activity measuring device, 21 ... Central nerve activity analysis means, 30 ... Evaluation means, 40 ...・ Body lotion container.

Claims (9)

An autonomic nerve activity measuring device for detecting autonomic nerve activity;
A central nervous activity measuring device for detecting central nervous activity;
An autonomic nerve activity analyzing means for analyzing the autonomic nerve activity detection result detected by the autonomic nerve activity measuring device;
CNS activity analyzing means for analyzing the CNS activity detection result detected by the CNS activity measuring device;
A cosmetic evaluation system comprising: an evaluation means for evaluating cosmetics based on an analysis result analyzed by the autonomic nerve activity analysis means and the central nerve activity analysis means.   The cosmetic evaluation system according to claim 1, wherein the autonomic nerve activity measuring device measures parasympathetic nerve activity.   The cosmetic evaluation system according to claim 2, wherein the autonomic nerve activity measuring apparatus measures a spectrum of heart rate variability.   The cosmetic evaluation system according to any one of claims 1 to 3, wherein the central nerve activity measuring device measures cerebral blood dynamics.   The cosmetic evaluation system according to claim 4, wherein the central nervous system activity measuring device measures oxyhemoglobin concentration and / or total hemoglobin concentration by near infrared spectroscopy. The autonomic nerve activity analyzing means analyzes whether the autonomic nerve activity is enhanced or suppressed from the autonomic nerve activity detection result,
The central nervous activity analyzing means analyzes whether the central nervous activity is enhanced or sedated from the detection result of the central nervous activity;
The cosmetic evaluation system according to any one of claims 1 to 5, wherein the evaluation unit classifies into four types of evaluation results based on the combination of the analysis results. An autonomic nerve activity detecting step for detecting autonomic nerve activity when cosmetics are presented to the subject by the autonomic nerve activity measuring device;
A central nervous activity detection step for detecting central nervous activity when the cosmetic is presented to the subject by a central nervous activity measuring device;
An autonomic nerve activity analysis step for causing the autonomic nerve activity analysis means to analyze the autonomic nerve activity detection result detected by the autonomic nerve activity measuring device;
A central nervous activity analysis step for causing the central nervous activity analysis means to analyze the central nervous activity detection result detected by the central nervous activity measuring device;
A cosmetic evaluation method comprising: an evaluation step of causing an evaluation means to evaluate a cosmetic based on an analysis result analyzed by the autonomic nerve activity analysis means and the central nerve activity analysis means. In the autonomic nerve activity analysis step, the autonomic nerve activity analysis means analyzes whether the autonomic nerve activity is enhanced or suppressed from the autonomic nerve activity detection result,
In the central nervous activity analysis step, the central nervous activity analysis means analyzes whether the central nervous activity is enhanced or sedated from the detection result of the central nervous activity,
The cosmetic evaluation method according to claim 7, wherein in the evaluation step, the evaluation unit classifies the evaluation means into four types of evaluation results based on the combination of the analysis results. The cosmetic evaluation method according to claim 7 or 8, wherein the autonomic nervous activity detection step and the central nervous activity detection step are performed simultaneously.

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