JPH0788187A - Recording body with fmtheta guidance - Google Patents

Abstract

PURPOSE:To artificially guide Fmtheta by forming a track in which a modulated wave obtained by superposing a specific ultralow frequency to a low frequency in an audible area is recorded magnetically or optically, in the recording body for Fmtheta guidance for giving an audible sound for quickening the appearance of Fmtheta in a brain wave of a person by reproduction. CONSTITUTION:Based on time series of about 25 examples having 1/f fluctuation, and also, by dividing geometrically 0 to 20 times/min. into five stages as for the frequency, and also, 0 to 60 seconds into six stages as for the duration, and they are stored in a frequency sequence storage part 2 and a duration storage part 3, respectively. Subsequently, in a microprocessor 1, a clock pulse from a clock oscillator 4 is controlled, while referring to the storage contents of both of them, and a pulse train corresponding to the frequency sequence and the duration sequence is generated. Outputted artificial irregular signals of a prescribed number of pieces become 1/f fluction control signals of a modulated wave generating circuit 6 through an interface 5, these control signals are applied to a modulating circuit of the modulated wave generating circuit 6, and its output is stored in a magnetic storage device 7 of a stereo system.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, when reproduced, provides an audible sound that prompts the appearance of Fmθ in human brain waves.
The present invention relates to a recording body for guidance.

[0002]

2. Description of the Related Art A potential difference observed between two different points on the cerebral cortex and scalp is called "electroencephalogram" and has a unique waveform and rhythm corresponding to the state of mind and body. The electroencephalogram is usually classified into four waves of α wave, β wave, θ wave, and δ wave, depending on the cycle of rhythm. Among them, the α-wave having a period of 8 to 13 Hertz becomes strong and continuously appears in a wide range as the mind and body relax. On the contrary, the β wave having a period of 18 to 30 Hertz becomes strong and appears in a wide range as the mind and body get nervous. The θ wave having a period of 4 to 8 hertz and the δ wave having a period of less than 4 hertz are brain waves related to sleep onset, and the θ wave appears strongly during sleep onset, and it is said that the δ wave becomes dominant as the sleep deepens. As seen in Inoue et al., “The E.G. Of Mental Activities”, pages 136-148 (1988), θ
Among waves, the dominant 6- to 7-hertz rhythm observed near the median frontal region of adults is called "Fmθ" and is said to be deeply involved in mental work. An analysis of the EEG of a human who is mentally working shows that F near the front midline of the worker.
The appearance of mθ is observed, and its intensity and distribution are
The more attention and concentration the worker has, the stronger
It will appear in a wide range.

Since Fmθ has a close relationship with attention and concentration as described above, if Fmθ can be artificially guided by some method, the attention and concentration of the worker can be improved. It is expected to improve work efficiency and accuracy. However, up to now, no device or method capable of artificially inducing Fmθ has been known.

[0004]

In view of the above situation, an object of the present invention is to provide a recording medium capable of artificially inducing Fmθ.

[0005]

Means for Solving the Problems The inventors of the present invention have conducted extensive research into means for solving such problems, and as a result, a modulated wave in which an ultralow frequency of about 20 hertz or less is superimposed on a low frequency in the audible range is found. It was found that Fmθ was stronger and appeared in a wider range when the subject listened to it. The present invention is based on such a new finding, and has a track magnetically or optically recorded with a modulated wave in which an ultralow frequency of about 20 hertz or less is superimposed on a low frequency in the audible range, and when reproduced, The gist is a recording medium for Fmθ guidance that gives an audible sound including the modulated wave.

[0006]

The recording medium for Fmθ induction of the present invention gives an audible sound including a modulated wave in which an ultralow frequency of about 20 hertz or less is superimposed on a low frequency in the audible range when properly reproduced by a reproducing device. . This audible sound is heard by the target person,
Promotes the appearance of Fmθ in the brain waves. When the very low frequency is in the range of about 2 to 10 hertz, Fmθ
Not only does it encourage the appearance of alpha waves.

The present invention will be described in detail below with reference to examples and experimental examples. The modulated wave referred to in the present invention is a super low frequency of about 20 hertz or less superposed on a low frequency in the audible range. It will be. As such a low frequency,
A continuous wave or a pulse wave having an appropriate waveform with a frequency exceeding the extremely low frequency and not exceeding about 20,000 hertz is used.
As a result of various tests conducted by the present inventor on healthy subjects, when the low-frequency frequency exceeds about 6,000 Hz, some subjects may complain of difficulty in hearing or slight discomfort. In practice, in consideration of the frequency of the ultra-low frequency and the frequency characteristic of the reproducing apparatus, it is usually set to about 50 to 3,000 Hertz, preferably about 100 to 500 Hertz, more preferably about 120 to 200 Hertz. Good to do. Various similar tests were performed on the waveform, and a continuous wave such as a sine wave or a pulse wave such as a sawtooth wave, a square wave, or a rectangular wave, which has a relatively long pulse duration, is preferable. there were. On the other hand, the frequency of about 2
A continuous wave or pulse wave of 0 hertz or less, usually about 2 to 10 hertz is desirable, and its waveform is a continuous wave such as a sine wave or a pulse wave having a relatively long duration as in the case of low frequency. Is preferred.

To generate such a modulated wave, an electric circuit called a modulated wave generating circuit is usually used, and this modulated wave generating circuit is, for example, a first oscillating circuit for generating a low frequency in the audible range. A modulation for modulating the former low frequency by the latter ultra low frequency, which has a second oscillation circuit for generating an ultra low frequency of about 20 hertz or less and an input terminal connected to the output terminals of those oscillation circuits. And a circuit. That is, the low frequency generated by the first oscillating circuit is amplitude-modulated by the ultra low frequency generated by the second oscillating circuit in the modulating circuit to obtain a modulated wave in which the ultra low frequency is superimposed on the low frequency. This modulated wave has a waveform in which the ultra-low frequency envelopes the low frequency, and the voltage value of the low frequency periodically fluctuates according to the frequency of the ultra-low frequency. The present inventor paid attention to Fmθ inducing ability and side effects, and tested it on a healthy person while changing the modulation degree of the modulated wave variously. As a result, the modulation degree was about 30 to 1
When it was in the range of 00%, preferably about 60 to 90%, it was possible to induce the highest level of Fmθ without substantially causing side effects such as discomfort.

By the way, in the audible sound according to the present invention, when the so-called "1 / f fluctuation" is added, the Fmθ inducing ability is remarkably enhanced. That is, the frequency of appearance of audible sound, the duration,
When the frequency and / or the intensity are changed according to the 1 / f fluctuation rule, the audible sound based on the modulated wave and 1 / f
It was found that the fluctuations due to the fluctuation rule act synergistically to promote the appearance of Fmθ to the extent that it cannot be easily achieved by only one of them. Among others, EEG, heart rate, blood pressure, breathing,
A series having 1 / f fluctuation sampled from long-term fluctuations of biological phenomena including body temperature is extremely useful,
When the appearance frequency, duration, frequency and / or intensity of the audible sound is changed based on such a sequence, an extremely high level of Fmθ can be induced with a small amount of stimulation, and it also lasts for a long time after stimulation. . This is because a series having 1 / f fluctuations sampled from long-term fluctuations in human biological phenomena contains a lot of important information regarding biological control mechanisms represented by the nervous system, and the information is auditory information. It is understood that when it is perceived through the above, it acts effectively in addition to promoting the appearance of Fmθ, and synergistically enhances the physiological action of audible sound according to the present invention. In order to impart such a variation to the audible sound, for example, the series as described above is stored in a microcomputer, and the electric signal including the pseudo 1 / f fluctuation series taken out from the series is oscillated by the oscillation circuit via an interface. It suffices to supply it to a modulation circuit or control it.

The modulated wave obtained as described above is supplied to a magnetic or optical recording device, and rewritably recorded there on a track of a recording medium. The recording medium referred to in the present invention usually means a magnetic recording medium such as a magnetic tape, a magnetic disk, a magnetic floppy disk, or an optical recording medium such as an optical disk. The method according to the recording medium may be adopted. When the recording medium is, for example, a compact cassette type magnetic tape, the magnetic tape may be run while being in contact with the magnetic head, and an electric signal containing a modulated wave may be applied to the magnetic head. When the recording medium is, for example, a compact disc, an electric signal containing a modulated wave is once converted into a digital signal, and a master disc in which the digital signal is stored so as to be optically readable is manufactured. Then, by pressing a disk raw material such as polycarbonate on the basis of the master disk, a compact disk having tracks on which modulated waves are optically recorded can be obtained. When the recording body is an image-recordable recording body such as a video tape or a video disc, an image capable of inducing Fmθ and / or α waves may be recorded in addition to the modulated wave according to the present invention.

The audible sound according to the present invention has no substantial difference in the induced Fmθ regardless of whether the target person listens with one ear or both ears. Therefore, the recording method is a monaural method or a stereo method. It doesn't matter. However, in the case of the stereo system, for example, the modulated wave can be recorded on the first track while the unmodulated low frequency can be recorded on the second track. Only the first recorded track should be listened to, and if necessary, both tracks can be listened to in stereo, so that the target person can switch between the modulated wave and the unmodulated low frequency as appropriate. it can. Depending on the subject, listening to audible sound for a long period of time may cause a feeling of fatigue or getting used to the audible sound. When doing the above, such feeling of fatigue and familiarity should be minimized. be able to.

To explain the method of using the recording medium according to the present invention, the recording medium of the present invention gives an audible sound including a modulated wave when properly reproduced by a reproducing apparatus. As long as such an audible sound can be obtained, the playback device itself is not particularly limited, and an audio / video device for business or consumer use is usually used. Generally, the audible sound according to the present invention is slightly strong at first and gradually weakened depending on the purpose of use. When the purpose of use is to improve attention and concentration during mental work, as needed, each time,
Listen for an appropriate amount of time before or during work. When the purpose is to prevent or treat diseases, carefully monitor the condition of the subject and, for example, 1 to 3 times a day, for a maximum of 2 hours each time, 1 to 7 days a week Listen for a month or a year. Depending on the purpose of use and the target person,
The sound pressure of the audible sound at that time is usually about 20 to 90 d.
B, preferably about 30 to 80 dB.
As described above, the audible sound according to the present invention has no substantial difference in the intensity and distribution of the induced Fmθ whether it is heard with one ear or both ears. Depending on the subject, the audible sound according to the present invention has the property of promoting Fmθ if it is continuously listened to for a long period of time, after that, for a very short period of time, or even at all. For such a subject, the recording medium of the present invention is useful as a means of so-called "mental training".

Next, the present invention will be specifically described based on a few examples.

[0014]

EXAMPLE 1 This example illustrates a magnetic recording medium which gives an audible sound whose reproduction frequency and duration change according to the 1 / f fluctuation rule when reproduced.

The electric circuit means for generating such a modulated wave giving an audible sound will be described with reference to FIG. 1. In the figure, 1 is a microprocessor, and this microprocessor 1 has a frequency series storage circuit. 2. The duration memory circuit 3 and the clock oscillator 4 are connected to form a microcomputer. Separately, 5 healthy people (2
Based on a time series of 25 cases with 1 / f fluctuations sampled from Fmθ of 3 males and 2 females in the 0's, the frequency was 0 to 20 times / minute in 5 stages, and Regarding the duration, 0 to 60 seconds are equally divided into 6 stages and stored in the frequency sequence storage unit 2 and the duration storage unit 3. The microprocessor 1 controls the clock pulse from the clock oscillator 4 while referring to the stored contents of both, and generates a pulse train corresponding to the frequency series and the duration series. Since the storage capacity of the microprocessor 1 is limited, the original data can be restored again by referring to a certain number of both the frequency series and the duration series.
The fixed number of pseudo-random signals thus obtained become the 1 / f fluctuation control signal of the modulated wave generation circuit 6 by the interface 5. The modulated wave generation circuit 6 has a frequency of about 150.
The first sine wave generating circuit generates a sine wave of Hertz, the second oscillating circuit generates a sine wave having a frequency of about 8 Hertz, and an input terminal connected to the output terminals of the oscillating circuits. A modulation circuit that amplitude-modulates the wave with the latter sine wave, and a control signal from the interface 5 is applied to the modulation circuit in the modulation wave generation circuit 6 to control the output thereof. Output terminals of the modulation circuit and the first oscillation circuit in the modulated wave generation circuit 6 are connected to different input terminals of the stereo type magnetic recording device 7.

In this state, all circuits or devices are started, and the degree of modulation of the modulated wave is set to about 80 while observing the waveform appearing at the output end of the modulated wave generating circuit 6 with an oscilloscope.
%, And the compact cassette type magnetic tape 8 loaded in the magnetic recording device 7 is run at a speed of 4.8 cm / sec to generate a sine wave with a frequency of about 150 Hertz and a frequency of about 8 with the sine wave. Modulated waves in which Hertzian sine waves were superimposed were recorded on separate tracks on the magnetic tape 8. The magnetic tape 8 has a tape width of 3.8.
A normal product of 1 mm was used.

The recording medium of this example has a track on which a sine wave having a frequency of about 150 hertz is magnetically recorded and a track on which a modulated wave in which a sine wave having a frequency of about 8 hertz is superimposed is magnetically recorded. When reproduced, an audible sound including the above sine wave or modulated wave was given. The recording medium of this example can be usually reproduced by a general reproducing apparatus, and since it is easy to handle and carry, the operator can carry it along with the reproducing apparatus at a place where he / she actually works mentally. Audible sound according to the invention can be heard. The audible sound given by the recording medium of this example changes in appearance frequency and duration according to the 1 / f fluctuation rule, and has extremely high Fmθ inducing ability.

In this example, only the appearance frequency and duration of the audible sound are changed according to the 1 / f fluctuation rule, but only one of them is changed according to the 1 / f fluctuation rule, and the other is changed. The intensity and / or the frequency of the low frequency and / or the very low frequency in addition to the frequency and the duration may be changed irregularly within a certain range according to the 1 / f fluctuation rule. . In this example, human F
Although specific reference was made only to an example using a sequence sampled from long-term fluctuations in mθ, the present inventors have described a sequence sampled from long-term fluctuations in biological phenomena such as heart rate, blood pressure, respiration, and body temperature. In the same experiment, although it was slightly inferior to the case of Fmθ, almost the same result was obtained.

[0019]

[Embodiment 2] A first oscillator that generates a sine wave having a frequency of approximately 150 Hertz, a second oscillator that generates a sine wave having a frequency of approximately 8 Hertz, a modulator having an amplifier circuit built therein, and a stereo magnetic system. Prepare a recording device, and use the output end of the first oscillator as one of the modulator and the input end of the magnetic recording device, the output end of the second oscillator as the input end of the modulator, and the output end of the modulator as the magnetic end. It was connected to one of the remaining inputs on the recorder.
All these devices were started, and the degree of modulation of the modulated wave was adjusted to about 80% while observing the waveform of the modulated wave appearing at the output end of the modulator with an oscilloscope. In this state, a compact cassette type magnetic tape loaded in the magnetic recording device is run at 4.8 cm / sec, and a modulated wave is applied to one track of the magnetic tape and an unmodulated low frequency is applied to the other track. That is, a sine wave with a frequency of about 150 Hz was recorded. The magnetic tape has a tape width of 3.
A 81 mm regular product was used.

When reproduced, the recording medium of this example has a frequency of about 1
An audible sound including a sine wave of 50 Hertz and an audible sound including a modulation wave in which a sine wave having a frequency of about 8 Hertz is superposed on the sine wave as shown in FIG. The recording medium of this example can be usually reproduced by a general reproducing apparatus, and since it is easy to handle and carry, the operator can carry it along with the reproducing apparatus at a place where he / she actually works mentally. Audible sound according to the invention can be heard.

[0021]

EXAMPLE 3 This example illustrates an optical recording medium which, when reproduced, gives an audible sound according to the present invention. In this example, first, a magnetic tape in which a predetermined modulated wave and an unmodulated low frequency are magnetically recorded on different tracks is produced, then this magnetic tape is reproduced, and the reproduction output thereof is recorded by an optical recording device. Optically recorded on a commercially available writable optical disc.

Similar to the first embodiment, a sine wave having a frequency of about 150 hertz and a sine wave having a frequency of about 8 hertz are superposed on the sine wave.
Modulated waves having f-fluctuation were generated, and these were recorded in separate tracks on a magnetic tape by a magnetic recording device in a stereo system for 8 minutes. The magnetic tape uses an open reel system with a tape width of 6.25 mm, and the tape running speed during recording is 19 cm /
Set to seconds. Next, in substantially the same manner as in Example 2, a sine wave having a frequency of about 150 hertz and a sine wave having a frequency of 2 hertz, 10 hertz, 4 hertz, 8 hertz, 6 hertz, 8 hertz, 4 hertz or 10 hertz. Five kinds of modulated waves in which the waves were superposed were generated for 1 minute each with a rest period of 10 seconds each time the frequency changed in this order, and recorded on the remaining portion of the magnetic tape in the same manner as above. The degree of modulation of any of the modulated waves is set to about 80% as in the first and second embodiments, and during the rest period of the modulated wave, the unmodulated sine wave of other tracks is set. Recording was also stopped.

The magnetic tape thus obtained was loaded into a magnetic reproducing device, and the output end of the magnetic reproducing device was connected to the input end of a general optical recording apparatus generally ordinary through a mixer.
The optical recording device was loaded with a writable 8-cm optical disc "CDM-V8" manufactured and sold by Pioneer Corporation, both devices were started in this state, and the reproduction output of the magnetic tape was recorded on the optical disc. The sampling frequency and the number of quantization bits during optical recording are 44.
The call subcode was provided for each of the first half and the second half of the modulated wave on the optical disk with 1 kHz and 16 bits.

The optical recording medium thus obtained is composed of a track on which a sine wave having a frequency of about 150 hertz is recorded and a track on which a modulated wave in which a sine wave having a frequency of 2 to 10 hertz is superimposed is recorded. When played, it gave an audible sound containing those sine waves or modulated waves. The recording medium of this example can be usually reproduced by a general reproducing apparatus, and since it is easy to handle and carry, the operator can carry it along with the reproducing apparatus at a place where he / she actually works mentally. Audible sound according to the invention can be heard. Further, since the recording sub-code of the present example is provided with the calling sub-code for each modulated wave, the operator can easily listen to only the modulated wave which he thinks is most effective.

Next, the effect of the present invention will be described based on experimental examples.

[0026]

[Experimental Example] Five male and female subjects in their 20's who are not suffering from neuropsychiatric disease were the subjects, and their heads were equipped with stereo headphones and bioelectrodes for EEG measurement according to the "International Electroencephalographic Society Standard Electrode Arrangement Method". did. The electroencephalogram “1A97A type” manufactured and sold by NEC Sanei Co., Ltd., which is equipped with a data processing device for the biomedical electrode for measuring the electroencephalogram, and the stereo headphones, except that the frequency range of the ultra-low frequency is appropriately changed, The magnetic reproducing device loaded with the recording medium manufactured in the same manner as in No. 2 was connected. Next, first, a Kraepelin test (continuous addition work) was added as mental work for 15 minutes in a state in which the subject could not hear an audible sound, and during that period, the brain waves of the subject were detected and amplified. , Recorded on the data recorder "XR-710" manufactured and sold by TEAC Corporation.
After the test in the first half is completed, the subject is allowed to rest for 5 minutes, and this time, while listening to an audible sound, a Kraepelin test for the latter half 15 minutes is added, while the electroencephalogram of the subject is monitored in the same manner as described above. After detecting and amplifying the obtained data, it was recorded in a data recorder. The sound pressure of the audible sound was set to about 70 dB on the subject's eardrum.

After the test, the data recorded in the data recorder is added and processed nine times by the signal processor "7T18A type" manufactured and sold by NEC Sanei Co., Ltd.
After frequency analysis, Fmθ of 10 subjects was averaged to 1
It was displayed as a topograph per minute. At the same time, during the mental work for 15 minutes each in the first half and the second half, for Fmθ derived from the F3, Fz, and F4 sites in the head of the subject, the average intensity per minute for the first 15 minutes and the second half 15 minutes (micro (Volts), and substitute the obtained average strength into the number 1 for each part to obtain F
The mθ increase rate (%) was calculated. These topographs and Fm
The rate of increase in θ was used as a guide for determining the Fmθ inducing ability of each audible sound. The results are shown in Table 1 and FIGS.

[0028]

[Equation 1]

As a control, a system in which no audible sound is heard (hereinafter referred to as "control 1") and an unmodulated wave, that is,
A system for hearing only a sine wave having a frequency of about 150 Hz (hereinafter referred to as "control 2") was provided, and these controls were tested in the same manner as described above.

[0030]

[Table 1]

As is clear from the results shown in Table 1, all the audible sounds contained a sine wave with a frequency of about 150 Hz in common, but a significant difference was observed in the Fmθ increase rate. That is, when the frequency of the ultra-low frequency is in the range of about 20 hertz or less, the Fmθ increase rate is remarkably increased in all the parts of F3, Fz, and F4, and is about 130% of the control 1 depending on the derived part. Sometimes reached. 3 and 4
The topograph of No. 2 also confirms that when mental work is performed while listening to the audible sound according to the present invention, Fmθ appears to be strong and widely appears around the front midline of the subject. As can be seen from the results of Control 3 and Control 4 in Table 1, when the frequency of the very low frequency exceeds 20 Hz, Fmθ
There was no significant difference in the rate of increase from Control 1 and Control 2, depending on the subject, slight discomfort or a decrease in concentration, or a clear delay in the progress of the Kraepelin test was observed.

From the above experimental facts, it is understood that the frequency of the ultra-low frequency is suitable in the range of about 20 hertz or less, particularly in the range of about 2 to 10 hertz. Although not shown in the data, the frequency of the low frequency was fixed at around 8 hertz, and the same test as above was performed while appropriately changing the frequency of the low frequency within the range of 50 to 6,000 hertz. The Fmθ increase rate increased significantly when the frequency was about 100 to 500 Hertz, and reached a peak when the frequency was about 120 to 200 Hertz. In addition, an audible sound in which a sine wave having a frequency of about 150 hertz is superimposed on a sine wave having a frequency of about 8 hertz was tested in the same manner as described above while appropriately changing the modulation degree of the modulation wave. 100
%, The rate of increase in Fmθ reached a peak. In addition to sine waves, we tested pulse waves such as sawtooth waves, square waves, triangle waves, and rectangular waves, and found that pulses with comparatively long durations were almost inferior to sine waves, but almost the same results were obtained. Was given.

Separately, the effects of the audible sound according to the present invention on the appearance of α-waves were tested on the 10 subjects. That is, the electroencephalogram measurement bioelectrode and stereo headphones are attached to the subject's head, and the frequency is about 1 for 60 minutes in a state of sitting with the eyes closed as relaxed as possible.
An audible sound including a modulation wave formed by superimposing a sine wave having a frequency of about 8 hertz on a sine wave of 50 hertz was heard. Then, during that period, an electroencephalogram was measured by a conventional method, amplified, and then recorded in a data recorder. After the completion of the test, the recorded data was subjected to frequency analysis, and the α wave having a period of 8 to 10 hertz was displayed as a topographic graph per minute at intervals of 5 minutes for 20 minutes immediately after the start of measurement. Three days later, the same experiment was performed on the same subject, except that no audible sound was heard. As a result, when an audible sound according to the present invention is heard, a significant change appears in the α wave of the subject, and the α wave when the audible sound is not heard is as shown in FIG.
When the audible sound according to the present invention is heard, as shown in FIG. 6, at the time of 15 minutes after starting to hear the audible sound, the α wave is strong around the parietal region of the subject and appears in an extremely wide range. Was found to exist. At the same time, the appearance of β waves was also significantly suppressed. This tendency was almost unchanged when the frequency of the ultra-low frequency was changed in the range of about 2 to 10 hertz.

These facts suggest that the audible sound according to the present invention not only promotes the appearance of Fmθ, but also promotes the appearance of α-wave and at the same time suppresses the appearance of β-wave. As described above, since the α-wave and the β-wave are brain waves corresponding to relaxation or tension of the mind and body, respectively, the recording medium of the present invention induces Fmθ when the eye is opened and used.
If you increase your concentration and use it with your eyes closed, you will relax and rest your mind and body.

As described above, since Fmθ is an index of good attention and concentration, the results of this experimental example show that the recording medium of this invention is used for mental work in general, and that the attention and concentration of the user are It can be said that it suggests that the efficiency and precision of mental work be maintained at a high level by raising the level. This is also confirmed from the progress rate (%) of the Kraepelin test, and as shown in Table 1, when the audible sound according to the present invention was heard, the progress rate of the work was significantly increased.

[0036]

Since the recording medium of the present invention is constructed as described above, the audible sound prompts the appearance of Fmθ in the brain wave when the subject hears it. In particular, when the very low frequency is in the range of about 2 to 10 hertz, Fmθ
Not only that, it also encourages the appearance of alpha waves. Therefore, the audible sound according to the present invention can be converted into F
It promotes the desired state of mind and body related to mθ and α waves, that is, improvement of attention and concentration, and further relaxation and rest of mind and body.

From the above, the audible sound provided by the recording medium of the present invention is not limited to improvement of attention and concentration,
Relaxation and rest of the mind and body, learning ability, improvement of creative ability, further, for example, neurosis, psychotic disorders, psychosomatic disorders, manic depression, chronic alcoholism and other mental illnesses, for example,
Electromagnetic waves radiated from TV receivers, video displays, OA devices, automobile spark plugs, etc., cause thinking, concentration, decreased work motivation, insomnia, malaise, and threatening feelings due to general stress diseases including techno-stress. It is effective in alleviating and relieving phobia and deficiency. Therefore, the recording material of the present invention can be used for general households, workplaces, stadiums, schools, cram schools, driving schools, training centers, research institutes,
In ateliers, etc., as a means to improve efficiency and precision of mental work, learning ability, academic research ability, creative ability, or concentration ability during competition, and in workplaces, clinics, hospitals, sanatoriums, etc. It is useful as a means for preventing and treating various mental disorders. Depending on the subject, if the audible sound according to the present invention is continuously listened to for a long time,
After that, the appearance of Fmθ may be promoted even if listening for a very short time or not listening at all. For such a target person,
The recording medium of the present invention is useful as a means of so-called "mental training".

As described above, it can be said that the present invention is a significantly significant invention that contributes to the field.

[Brief description of drawings]

FIG. 1 is a block diagram showing an electric system for recording a modulated wave or the like according to the present invention on a magnetic recording medium.

FIG. 2 is a waveform diagram of audible sound obtained by reproducing the magnetic recording medium of Example 2.

FIG. 3 is a topograph showing Fmθ when a subject is subjected to mental work without hearing an audible sound.

FIG. 4 is a topograph showing Fmθ when a subject is subjected to mental work while listening to an audible sound according to the present invention.

FIG. 5 is a topograph showing α-waves when a subject is seated in a sitting position without hearing an audible sound.

FIG. 6 is a topograph showing α-waves when a subject is seated with his eyes closed while listening to an audible sound according to the present invention.

[Explanation of symbols]

 1 Microprocessor 2 Frequency Series Storage Circuit 3 Sustained Series Storage Circuit 4 Clock Oscillator 5 Interface 6 Modulated Wave Generation Circuit 7 Magnetic Recording Device 8 Magnetic Tape

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[Procedure amendment]

[Submission date] April 6, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0026

[Correction method] Change

[Correction content]

[0026]

[Experimental Example] Five male and female subjects in their 20's who are not suffering from neuropsychiatric disease were the subjects, and their heads were equipped with stereo headphones and bioelectrodes for EEG measurement according to the "International Electroencephalographic Society Standard Electrode Arrangement Method". did. The electroencephalogram “1A97A type” manufactured and sold by NEC Sanei Co., Ltd., which is equipped with a data processing device for the biomedical electrode for measuring the electroencephalogram, and the stereo headphones, except that the frequency range of the ultra-low frequency is appropriately changed, The magnetic reproducing device loaded with the recording medium manufactured in the same manner as in No. 2 was connected. Next, first, in a state in which the subject does not hear an audible sound, a Kraepelin test (continuous first place addition work) is applied as mental work for 15 minutes, during which the brain waves of the subject are detected and amplified, Recorded on the data recorder "XR-710" manufactured and sold by TEAC Corporation.
After the first half of the test was completed, the subject was allowed to rest for 5 minutes, and this time, while listening to an audible sound, a Krapelin test for the second half of 15 minutes was applied, while the brain waves of the subject were detected in the same manner as described above. Then, the obtained data was amplified and then recorded in a data recorder. The sound pressure of the audible sound was set to about 70 dB on the subject's eardrum.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0034

[Correction method] Change

[Correction content]

These facts suggest that the audible sound according to the present invention not only promotes the appearance of Fmθ, but also promotes the appearance of α-wave and at the same time suppresses the appearance of β-wave. As described above, since the α-wave and the β-wave are brain waves corresponding to relaxation or tension of the mind and body, respectively, the recording medium of the present invention induces Fmθ when the eye is opened and used.
If you use it with increased concentration and closing your eyes, you will induce α waves and suppress β waves to relax and rest your mind and body.

Claims (7)

[Claims] 1. A track having magnetically or optically recorded a modulated wave in which an ultralow frequency having a frequency of about 20 hertz or less is superposed on a low frequency in the audible range, and when reproduced, an audible sound including the modulated wave is given. Recorder for Fmθ guidance. 2. A low frequency in the audible range has a frequency of about 120 to 2.
The recording medium for Fmθ guidance according to claim 1, which has a frequency of 00 hertz. 3. The recording medium for Fmθ induction according to claim 1, wherein the frequency of the ultra-low frequency is about 2 to 10 hertz. 4. The recording medium for Fmθ guidance according to claim 1, 2 or 3, wherein the modulation degree of the modulated wave is in the range of about 30 to 100%. 5. The recording medium for Fmθ induction according to claim 1, 2, 3 or 4, wherein the frequency, appearance frequency, duration and / or intensity of the audible sound fluctuates according to the 1 / f fluctuation rule. 6. The recording medium for Fmθ induction according to claim 1, 2, 3, 4 or 5, wherein the low frequency and the ultra low frequency have a sine wave waveform. 7. The Fmθ according to claim 1, wherein the recording medium is a magnetic tape or an optical disc.
Recorder for guidance.