JP2009039339A - Sleep inducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sleep inducing device effectively inducing sleeping with a simple constitution. <P>SOLUTION: The sleep inducing device 1 for inducing subject's sleeping has bioinformation acquiring means 2 for acquiring the bioinformation of the subject, stimulation parameter acquiring means 3 for acquiring the parameters of the stimulations provided for urging the eye nystagmus to the subject based on the bioinformation acquired by the bioinformation acquiring means 2, and stimulation providing means 4, 5 for providing stimulations to the ear portions of the subject based on the stimulation parameters acquired by the stimulation parameter acquiring means 3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a hypnotic device that induces sleep of a subject.

In the case of sleeping at night or when the driver of the vehicle takes a nap, a wakefulness device for inducing sleep early has been developed. For example, in the device described in Patent Document 1, a sound stimulus and a vibration stimulus are simultaneously applied in an awake state to eliminate stress, and a sound stimulus is applied when relaxing and going to a sleep state. Stop and switch to vibration stimulation suitable for transition to sleep to induce sleep.
Japanese Patent Laid-Open No. 2-98368

  In the case of a conventional nap resting device, vibration is applied to the body, so that the configuration of the device is increased, and there is a risk that the vibration is transmitted to the whole body and a load is imposed on the built-in device. In particular, when mounted on a vehicle, it is necessary to embed a whole body vibration device in the seat, and the device configuration becomes very complicated in order to apply vibration to the back, buttocks, waist, and the like.

  Therefore, an object of the present invention is to provide a wakefulness device that effectively induces sleep with a simple configuration.

  A hypnotic device according to the present invention includes a biological information acquisition unit that acquires biological information of a subject, and a stimulation parameter that acquires a parameter of a stimulus to be given to prompt a subject to nystagmus based on the biological information acquired by the biological information acquisition unit It is characterized by comprising acquisition means and stimulus applying means for applying a stimulus to the ear of the subject based on the stimulus parameter acquired by the stimulus parameter acquisition means.

  In this hypnotic device, the biological information of the subject is acquired by the biological information acquisition means, and the parameter relating to the stimulus for prompting the subject to nystagmus is acquired based on the biological information by the stimulation parameter acquisition means. In the hypnotic device, the stimulus is applied to the ear of the subject based on the stimulus parameter by the stimulus applying means. When the ear is stimulated, the outer semicircular canal of the semicircular canal is stimulated, and the lymph of the outer semicircular canal moves and lymph flow occurs despite the fact that the body is not shaken. It feels that the body has moved due to this lymph flow, and the eye moves and nystagmus occurs in an attempt to correct the eye gaze position. The subject's sleep is induced by giving such a pseudo swing feeling. As described above, in the hypnotic device, the subject can be effectively guided to sleep by generating a pseudo shake called nystagmus with a simple configuration that stimulates the ear.

  The biological information is various biological information related to the nystagmus of the subject, such as eye movement and body temperature. The stimulus is a stimulus that can cause lymph flow in the semicircular canal, and is, for example, a temperature stimulus, an electrical stimulus, a magnetic stimulus, a sound stimulus, or a vibration wave stimulus. The stimulus parameters are various parameters when giving a stimulus, and are, for example, the temperature of the temperature stimulus, the current value or voltage value of the electrical stimulus, the magnetic amount of the magnetic stimulus, and the loudness or frequency of the sound stimulus. When stimulating the ear, the stimulus may be applied to the inside of the ear, or the stimulus may be applied from outside the periphery of the ear (for example, the back of the ear).

  In the above-described hypnotic device of the present invention, it is preferable that the stimulus applying means applies a stimulus to the ear of the subject at a low frequency cycle. In this manner, in the hypnotic device, the subject can be induced to sleep earlier by causing the low frequency cycle to produce a pseudo low frequency cycle that is effective for the sleep. As the low frequency, for example, an irregular low frequency of 1 Hz or less, a low frequency similar to the slow eye movement that occurs before the transition to sleep stage 1 that is the beginning of sleep, and fluctuations such as 1 / f fluctuation There is a low frequency.

  In the above-described hypnotic device of the present invention, it is preferable that the stimulus applying means applies a stimulus alternately to the left and right ears. As described above, in the hypnotic device, by applying the same stimulus alternately to the left and right ears, the burden on the subject can be reduced, and the control and device configuration when applying the stimulus can be simplified.

  In the hypnotic device of the present invention, the stimulation parameter acquisition means acquires the temperature of the temperature stimulus for prompting the subject to nystagmus, and the stimulus applying means applies the temperature stimulus of the temperature acquired by the stimulation parameter acquisition means to the ear of the subject. It is good also as a structure given to a part.

  In this hypnotic device, in order to give the subject a temperature stimulus as a stimulus, the temperature of the temperature stimulus is acquired by the stimulus parameter acquisition unit, and the temperature stimulus of the temperature acquired by the stimulus parameter acquisition unit by the stimulus applying unit is applied to the ear of the subject. give. In the case of temperature stimulation, lymph flow can be generated according to the temperature difference between the body temperature and the temperature caused by the temperature stimulation. The greater the temperature difference, the greater the pseudo shaking (nystagmus) and the speed of the shaking. Get faster. Further, when a temperature higher than the body temperature is given, the eye moves to the given side, and when a temperature lower than the body temperature is given, the eye moves to the opposite side. As described above, in the hypnotic device, by applying a temperature stimulus, a lymph flow (and thus a pseudo shake) can be effectively generated, and the burden on the subject can be reduced.

  In the above arousal device of the present invention, the biological information acquisition unit may include an eye movement acquisition unit that acquires the movement of the eye of the subject and a body temperature acquisition unit that acquires the body temperature of the subject. When the stimulus to be applied is a temperature stimulus, in order to optimally control the magnitude and speed of the swing according to the subject, the subject's actual eye movement (nystagmus) and body temperature with respect to the applied temperature stimulus The temperature difference is important. Therefore, in this hypnotic device, the eye movement of the subject is acquired by the eye movement acquisition means, and the body temperature of the subject is acquired by the body temperature acquisition means.

  In the wakefulness device of the present invention, the stimulation parameter acquisition means includes nystagmus speed acquisition means for acquiring an nystagmus speed from the eye movement acquired by the nystagmus acquisition means, and the nystagmus speed acquired by the nystagmus speed acquisition means The temperature of the temperature stimulus for prompting the subject to nystagmus may be acquired based on the body temperature acquired by the body temperature acquisition means.

  In this hypnotic device, the stimulus parameter acquisition unit acquires the nystagmus velocity of the subject from the eye movement by the nystagmus velocity acquisition unit, and prompts the subject to nystagmus based on the nystagmus velocity and body temperature actually detected from the subject. For getting temperature stimulus temperature. The nystagmus velocity is proportional to the temperature difference between the body temperature and the temperature of the temperature stimulus, and the nystagmus velocity increases as the absolute value of the temperature difference increases. In addition, the nystagmus speed may be different for the same temperature stimulus depending on the difference in the person and the physical condition of the same person. Furthermore, in humans, body temperature is not always constant but fluctuates. Therefore, in this hypnotic device, the temperature of the temperature stimulus given by feeding back the actual nystagmus velocity (response to the applied temperature stimulus) and body temperature of the subject when the temperature stimulus is given is set according to the subject. The optimal temperature can be set, and can be induced to sleep earlier.

  The present invention can induce a subject to sleep effectively by generating a pseudo shaking called nystagmus with a simple configuration for stimulating the ear.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a hypnotic device according to the present invention will be described with reference to the drawings.

  In the present embodiment, the wakefulness device according to the present invention is applied to a wakefulness device that is mounted on a vehicle and induces the driver to sleep early. In the hypnotic device according to the present embodiment, the stimulus to be applied is a temperature stimulus, the cycle to be applied is a low frequency cycle, and the ears to be applied are both ears.

  With reference to FIGS. 1-8, the wakefulness apparatus 1 which concerns on this Embodiment is demonstrated. FIG. 1 is a configuration diagram of a hypnotic device according to the present embodiment. FIG. 2 is a structural diagram of the ear. FIG. 3 is a relationship diagram between the temperature difference between the body temperature and the presentation temperature and the nystagmus velocity. FIG. 4 is a diagram illustrating an example of ON / OFF control of temperature stimulus presentation to both ears. FIG. 5 is an example of eye movement when temperature stimulus to both ears is presented by the control of FIG. FIG. 6 is another example of eye movement when temperature stimulus to both ears is presented by the control of FIG. FIG. 7 is an example of eye movement in the case of presenting a temperature stimulus to both ears by changing the presentation temperature by the control of FIG. FIG. 8 is a relationship diagram between the nystagmus cycle and the arousal effect.

  In order to induce the driver's sleep at an early stage using pseudo shaking, the wakeful device 1 presents temperature stimuli alternately to the left and right ears of the driver at a low frequency cycle. In particular, in the hypnotic device 1, in order to present a temperature stimulus having an optimum temperature according to the individual state of the driver, the body temperature and nystagmus state of the driver are acquired and the temperature of the temperature stimulus is set by feedback control. For this purpose, the hypnotic device 1 includes a biological information detection unit 2 (nystagmus detection unit 2a and body temperature detection unit 2b), a temperature setting unit 3, a temperature control unit 4, a stimulus presentation unit 5 (a right ear temperature presentation unit 5a and a left side). An ear temperature presentation unit 5b) is provided.

  In the present embodiment, the biological information detection unit 2 corresponds to the biological information acquisition unit described in the claims, and the nystagmus detection unit 2a corresponds to the nystagmus acquisition unit described in the claims. The body temperature detection unit 2b corresponds to the body temperature acquisition unit described in the claims, the temperature setting unit 3 corresponds to the stimulation parameter acquisition unit and the nystagmus velocity acquisition unit described in the claims, and the temperature control unit 4 and The stimulus presentation unit 5 corresponds to the stimulus applying means described in the claims.

  Before describing each part specifically, the principle of arousal by temperature stimulation to the ear part will be described with reference to FIG. The principle of this awakening focuses on temperature nystagmus stimulation used for dizziness tests. When a temperature stimulus TS is applied to the ear canal EE, the temperature difference between the temperature stimulus TS and the body temperature stimulates the outer semicircular canal ES of the semicircular canal SC of the inner ear IE to generate lymph flow. This lymph flow senses that the body has moved, and the eyes move to correct the line-of-sight position (ie, nystagmus occurs). That is, in the state where the lymph flow is generated by the temperature stimulus TS, the lymph of the outer semicircular canal ES moves despite the fact that the body is not shaken, and thus a pseudo shake occurs. This pseudo swinging sensation can lead to a sleep state earlier than usual. As described above, in the present embodiment, the pseudo shaking called nystagmus due to the temperature stimulation is used for awakening.

  In the case of inducing sleep by a temperature stimulus, it is very effective if the pseudo-sway (nystagmus) is a low frequency vibration. Therefore, the temperature stimulus is given at a low frequency cycle. For sleep awakening, a vibration around 1 Hz is effective as a physical shaking. Therefore, as the low frequency, for example, an irregular low frequency of 1 Hz or less, a low frequency similar to the slow eye movement that occurs before the transition to sleep stage 1 that is the beginning of sleep, and a low frequency with fluctuation such as 1 / f fluctuation. Is the frequency.

  The greater the temperature difference between body temperature and the applied temperature stimulus, the more intense the lymph flow. That is, the greater the temperature difference, the greater the shaking (nystagmus) and the faster the shaking speed (see FIG. 3). Further, when a temperature higher than the body temperature is applied, the eye moves to the applied ear side, and when a temperature lower than the body temperature is applied, the eye moves to the opposite side of the applied ear. Therefore, when temperature stimulation is applied to both ears, the eyes move to the left and right by alternately applying a higher temperature (or lower temperature) than the body temperature to the right and left ears at a low frequency cycle. On the other hand, when a temperature stimulus is given only to one ear, the eye moves to the left and right by giving a temperature higher and lower than the body temperature to one ear at a low frequency cycle. Then, each part is demonstrated concretely below.

  The biological information detection unit 2 is a means for detecting a driver's eye movement (degree of nystagmus) and body temperature, and includes a nystagmus detection unit 2a and a body temperature detection unit 2b. The nystagmus detection unit 2a detects eye movements at regular intervals, and outputs the detection results (for example, eye positions at regular intervals) to the temperature setting unit 3. As the nystagmus detection unit 2a, for example, detection by an EOG [Electro Oculography] using an electrooculometer (a general physiological measurement method in which electrodes are mounted in the vicinity of both eyes and the movement of the eye is detected by a potential change), a camera And detecting the movement of the eye by image recognition by the image processing apparatus. In the case of a camera, the eye movement cannot be directly detected when the eye is bound, but since the cornea portion is convex from the eye structure, the movement of the convex portion through the eyelid is detected from the image. The body temperature detection unit 2 b detects the body temperature at regular intervals, and outputs the detection result to the temperature setting unit 3. Examples of the body temperature detection unit 2b include a general thermometer and a thermography. As a location to detect, an ear | edge part may be sufficient, or locations other than an ear | edge part may be sufficient. In the case of the ear, only one ear or both ears may be used.

  The temperature setting unit 3 sets the degree of temperature stimulation (that is, the presentation temperature) effective for arousal based on the movement and body temperature of the driver's eyes detected by the biological information detection unit 2. Specifically, the temperature setting unit 3 sets the presentation temperature so that the difference between the body temperature and the presentation temperature becomes the basic temperature difference based on the driver's body temperature detected by the body temperature detection unit 2b at the start of control. To do. The basic temperature difference is a temperature difference between the body temperature and the presentation temperature necessary for achieving an effective nystagmus speed for awakening, and is set in advance by experiments with a large number of subjects. As shown in FIG. 3, generally, the temperature difference between the presentation temperature and the body temperature (if the temperature difference is less than 0, the presentation temperature is lower than the body temperature, and if the temperature difference is greater than 0, the presentation is higher than the body temperature. The nystagmus velocity changes linearly with respect to the temperature, and the nystagmus velocity increases as the temperature difference (absolute value) increases. Using this relationship, the basic temperature difference is set so that the nystagmus velocity becomes a low frequency (basic low frequency) effective for awakening. The basic low frequency is preset from the above low frequencies.

  Even when a temperature stimulus of the same presentation temperature is given at the same body temperature, the same nystagmus speed may not be achieved due to a difference in the person or a difference in the physical condition of the same person. Therefore, it is necessary to monitor the actual nystagmus speed of the driver when the temperature stimulus is applied and to adjust the temperature difference (presentation temperature) so that the target low frequency is obtained.

  In addition, the body temperature of a person is not always constant and often fluctuates. In addition, the body temperature varies greatly between a state of high arousal and a state of becoming sleepy. Particularly when a person is awakened (becomes sleepy), the person dissipates heat to lower the deep body temperature, and the body temperature of the body surface portion increases. Therefore, it is necessary to monitor the actual body temperature of the driver when the temperature stimulus is applied and to adjust the presentation temperature so as to achieve a target temperature difference.

  Therefore, the temperature setting unit 3 calculates the nystagmus velocity from the eye movement (such as the eye position at regular intervals) detected by the nystagmus detection unit 2a while presenting the temperature stimulus. Then, the temperature setting unit 3 is based on the body temperature detected by the body temperature detection unit 2b so that the actual nystagmus velocity becomes the nystagmus velocity (temperature difference) corresponding to the target low frequency (basic low frequency). To set the presentation temperature. For example, when the actual nystagmus velocity is faster than the nystagmus velocity corresponding to the target low frequency, the presentation temperature is changed so that the temperature difference from the body temperature becomes small in order to slow down the nystagmus velocity.

  For example, when a temperature higher than the body temperature is alternately applied to the left and right ears at a constant low frequency cycle as shown in FIG. 4, the eyes continuously move as shown in FIG. As shown in the figure, the eyes move intermittently. In this way, even with the same temperature stimulus, a difference in eye movement may occur due to a difference in person or physical condition, the nystagmus speed may be different, and the time until sleep is also different. Therefore, in the case of an eye movement that is not effective for arousal as shown in FIG. 6, changing the presentation temperature results in a smooth continuous eye movement effective for arousal as shown in FIG. .

  When temperature stimulation is given to both ears, a temperature higher than the body temperature may be given to both ears, or a lower temperature may be given. In addition, the presentation temperature is set so that the temperature difference (about several degrees C.) does not hinder driving.

  The temperature control unit 4 controls the stimulus presenting unit 5 so as to alternately give the presenting temperature set by the temperature setting unit 3 to the left and right ears of the driver at a target low frequency (basic low frequency) cycle. To do. Specifically, in the temperature control unit 4, as shown in FIG. 4, the right ear temperature presenting unit 5a of the ON command indicating the presenting temperature set by the temperature setting unit 3 for each target low frequency half cycle. Output to the left ear temperature presenting section 5b and output to the left ear temperature presenting section 5b and output to the left ear temperature presenting section 5b indicating the presentation temperature set by the temperature setting section 3 The output to the presentation part 5a is switched.

  As shown in FIG. 8, a person has an nystagmus cycle that is effective for arousal. Therefore, it is necessary to alternately apply a temperature stimulus to the left ear and the right ear so that this nystagmus cycle occurs. The basic low frequency which becomes this nystagmus cycle is preset as described above. Since the nystagmus cycle effective for this sleep may vary depending on the person, the basic low frequency may be set for each driver.

  The stimulus presentation unit 5 is a means for applying a temperature stimulus to each of the external ear canals of the left ear and the right ear, and includes a right ear temperature presentation unit 5a and a left ear temperature presentation unit 5b. In each temperature presentation part 5a, 5b, when an ON command is input, a temperature stimulus adjusted to the presentation temperature indicated by the ON command is given to the ear canal of each ear, and when an OFF command is input, a temperature stimulus presentation is performed. Stop. As each temperature presentation part 5a, 5b, there exists a means to inject the temperature adjustable wind, and a means to flow the temperature adjustable liquid, for example.

  With reference to FIGS. 1-8, operation | movement of the nap apparatus 1 is demonstrated. Here, temperature stimuli higher than the body temperature are given in order from the right ear. As for activation of the wakefulness device 1, for example, the driver may activate the driver for taking a nap or the like, or may be activated by control on the vehicle side. When the wakefulness device 1 is activated, the movement of the eye is detected by the nystagmus detection unit 2a and the body temperature is detected by the body temperature detection unit 2b at regular time intervals.

  At the time of start-up, the temperature setting unit 3 sets the presentation temperature so as to have a preset basic temperature difference based on the body temperature detected by the body temperature detection unit 2b. The temperature control unit 4 outputs an ON command indicating the presented temperature to the right ear temperature presenting unit 5a, and outputs an OFF command to the left ear temperature presenting unit 5b. When the ON command is input, the right ear temperature presenting unit 5a applies a temperature stimulus to the right ear to the external auditory canal. On the other hand, when an OFF command is input, the temperature presentation unit 5b for the left ear does not give a temperature stimulus. In this case, the outer semicircular canal of the right ear is stimulated to produce lymph flow, and both eyes begin to move to the right.

  After presenting the temperature stimulus, the temperature setting unit 3 calculates the nystagmus velocity from the eye movement detected by the nystagmus detection unit 2a at regular intervals. Then, the temperature setting unit 3 sets the presentation temperature based on the body temperature detected by the body temperature detection unit 2b so that the nystagmus velocity corresponds to the target low frequency at regular time intervals. .

  In the temperature control unit 4, for each target low frequency half cycle, an ON command indicating the presentation temperature is sent to one of the right ear temperature presentation unit 5 a and the left ear temperature presentation unit 5 b. And an OFF command is output to the other ear temperature presentation unit. When the ON command is input, the temperature presentation unit for one ear gives a temperature stimulus to the presentation temperature to the ear canal of one ear. When the OFF command is input, the temperature stimulation presentation is stopped in the other ear temperature presentation unit. In this case, the outer semicircular canal of one ear is stimulated to produce lymph flow, and both eyes move to one ear side. Then, after the lapse of the target low frequency half cycle, the temperature control unit 4 sends an ON command indicating the presentation temperature to the other ear temperature presentation of the right ear temperature presentation unit 5a and the left ear temperature presentation unit 5b. And output an OFF command to one ear temperature presentation unit. When the ON command is input, the other ear temperature presenting section gives a temperature stimulus to the presenting temperature to the ear canal of the other ear. When an OFF command is input, temperature stimulation presentation is stopped in one ear temperature presentation unit. In this case, the outer semicircular canal of the other ear is stimulated to produce lymph flow, and both eyes move toward the other ear. As a result, a temperature stimulus is alternately applied to the right and left ears at a low frequency period, and both eyes continuously move in the left-right direction. Due to the pseudo shaking caused by the low-frequency nystagmus, the driver shifts to a sleep state earlier than usual.

  According to the hypnotic device 1, the driver can be induced to sleep early by generating a pseudo shaking called nystagmus by giving a temperature stimulus to the ear. In particular, the hypnotic device 1 has a simple configuration that gives a temperature stimulus to the ear and can be easily mounted on an automobile.

  Furthermore, in the wakefulness device 1, the driver can be induced to sleep earlier by generating a pseudo swing of the low frequency cycle by the temperature stimulation of the low frequency cycle. In addition, in the hypnotic device 1, since the temperature of the temperature stimulus does not change abruptly by giving a stimulus to both the left and right ears, the burden on the driver due to the temperature stimulus can be reduced, and the right and left ears can be controlled by ON / OFF control. Control and device configuration can be simplified because only temperature stimulation is applied alternately.

  Further, in the hypnotic device 1, by giving a temperature stimulus as a stimulus, a pseudo shake can be effectively generated, and the burden on the driver can be reduced. In the hypnotic device 1, the optimum temperature according to the driver can be set by setting the temperature stimulus presentation temperature by feedback control based on the actual nystagmus velocity and body temperature during the temperature stimulus presentation, leading to sleep earlier can do.

  As mentioned above, although embodiment which concerns on this invention was described, this invention is implemented in various forms, without being limited to the said embodiment.

  For example, in this embodiment, the present invention is applied to a wake-up device that is mounted on a vehicle and induces a driver's sleep. However, the present invention can also be applied to other fields such as a medical field, a housing field, and a bedding field.

  In this embodiment, temperature stimulation is applied as a stimulus for promoting nystagmus. However, if lymph flow can be generated in the outer semicircular canal, electrical stimulation, magnetic stimulation, vibration wave stimulation, sound stimulation, etc. It may be a stimulus.

  In this embodiment, the stimulation is applied at a low frequency. However, the stimulation may be applied in another frequency band as long as sleep can be promoted.

  Further, in the present embodiment, a configuration is given in which the stimulation is given to the inside of the ear, but the stimulation may be given to the ear from outside the periphery of the ear.

  Further, in the present embodiment, a configuration is provided in which stimulation is alternately applied to both the left and right ears, but a configuration in which stimulation is applied to only one ear may be employed. For example, when temperature stimulation is applied only to one ear, when the temperature stimulation is higher than the body temperature, the eye shakes on the ear side to which the temperature stimulation is applied, and when the temperature stimulation is lower than the body temperature, Uses the fact that the eye sways on the opposite side, and generates nystagmus by applying a temperature stimulus higher than the body temperature and a temperature stimulus lower than the body temperature in a predetermined cycle. At this time, a high temperature stimulus and a low temperature stimulus may be given by ON / OFF control in a predetermined cycle, or the presentation temperature may be given by switching control between a high temperature and a low temperature. Thus, even when the stimulus is presented to one ear, nystagmus can be sufficiently generated and sleep can be induced early.

  In the present embodiment, the presentation temperature is controlled by feedback control using the body temperature and the nystagmus velocity. However, other control such as feedforward may be used, or only one of the body temperature and the nystagmus velocity may be used. The feedback control may be performed using this information, or the feedback control may be performed using biological information other than body temperature and nystagmus velocity (eye movement).

It is a lineblock diagram of the hypnotic device concerning this embodiment. FIG. It is a related figure of the temperature difference of body temperature and presentation temperature, and nystagmus velocity. It is a figure which shows an example of ON / OFF control of the temperature stimulus presentation to both ears. FIG. 5 is an example of eye movement when a temperature stimulus to both ears is presented by the control of FIG. 4. FIG. FIG. 5 is another example of eye movement when temperature stimulation is presented to both ears by the control of FIG. 4. FIG. FIG. 5 is an example of eye movement when a presentation temperature is changed by the control of FIG. 4 and a temperature stimulus is presented to both ears. It is a related figure of a nystagmus cycle and a hypnotic effect.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Hypnosis device, 2 ... Biological information detection part, 2a ... Nystagmus detection part, 2b ... Body temperature detection part, 3 ... Temperature setting part, 4 ... Temperature control part, 5 ... Stimulus presentation part, 5a ... Temperature presentation for right ear Part, 5b ... temperature presentation part for left ear

Claims (6)

Biometric information acquisition means for acquiring biometric information of the subject;
Stimulation parameter acquisition means for acquiring stimulation parameters to be given to the subject to stimulate nystagmus based on the biological information acquired by the biological information acquisition means;
A stimulating device comprising: a stimulating unit that applies a stimulus to the ear of the subject based on the stimulation parameter acquired by the stimulation parameter acquiring unit.   2. The hypnotic device according to claim 1, wherein the stimulus applying means applies a stimulus to the ear of the subject at a low frequency cycle.   The sleep stimulating apparatus according to claim 1 or 2, wherein the stimulus applying means alternately applies a stimulus to the left and right ears. The stimulation parameter acquisition means acquires the temperature of the temperature stimulus for prompting the subject to nystagmus,
The sleep stimulating device according to any one of claims 1 to 3, wherein the stimulus applying unit applies a temperature stimulus of the temperature acquired by the stimulus parameter acquiring unit to the ear of the subject. The biological information acquisition means includes
Eye movement acquisition means for acquiring eye movement of the subject;
And a body temperature acquisition means for acquiring the body temperature of the subject.   The stimulation parameter acquisition means includes nystagmus speed acquisition means for acquiring nystagmus speed from the eye movement acquired by the nystagmus acquisition means, and the nystagmus speed acquired by the nystagmus speed acquisition means and the body temperature acquisition means The temperature-stimulating temperature for prompting the subject to nystagmus is acquired on the basis of the body temperature acquired in step (5).

Images