JPS60106438A - Living body return apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a bioreturn system whose main purpose is self-control training of autonomic functions such as relaxation training, and whose secondary purpose is to carry out effective learning at a stage when the patient is sufficiently relaxed. Regarding equipment. Specifically, it is a method that generates sound effects that facilitate relaxation training, then mutes the sound effects when a physiological state suitable for learning is reached, and outputs sounds containing the information to be learned. Regarding.

It is common knowledge that human mental activities are reflected in brain waves with a unique correlation. Furthermore, it is a well-known fact that there are thousands of ways to detect these brain waves, convert them into perceptual information, and use them to control human mental activities and certain physiological states at will. More specifically, when a person's mental activity is in a state of concentration without tension, the brain waves mainly have a large alpha wave component, and conversely, when the mental activity is tense or dispersed, the alpha component of the brain waves is The amount of beta wave components increases. Therefore, if a person whose consciousness is scattered and restless tries to calm down and concentrate, if they train their brain waves to become mainly alpha waves, using the brain wave notification signals as cues, the result will be a change in their mind. You can feel calm and focused. These various training methods are called biofeedback methods, and the device for notifying the user of this purpose is called a biofeedback device.

The present invention relates to a system for notifying the trainee in the above-mentioned training means so that the training of the trainee becomes easy. Conventional notification means for this type of biofeedback device mainly use audio frequency sounds, such as notifications using variable frequency audible sounds whose frequency changes in correlation with the detected amount of alpha wave components;
Alternatively, the notification was made by an audible sound with a variable volume whose intensity varied in correlation with the amount of alpha wave components detected.

Although these notification signals have the characteristic that they always notify the amount of alpha wave components at the current time, they have the drawback that they do not provide any assistance to the subject in order to make alpha waves appear.

The present invention allows the subject to generate alpha waves by prompting the subject to generate alpha waves, and stops outputting the sound when alpha waves exceed a predetermined amount. The first feature is to make the subject recognize the appearance of waves, and in addition, a second sound is output to the area where alpha waves are detected (sometimes the subject can maintain that state), and this second sound is The second feature is that the sound contains information that the subject should memorize and learn.

Generally speaking, it is common knowledge that when the brain waves are alpha waves, consciousness is concentrated and the brain receives more information, so effective learning is possible.The second feature of the present invention embodies this fact. This is what I am trying to do. The types of sounds that help relaxation and the types of sounds that contain learning content vary from subject to subject, and there are large individual differences. For this reason, the most effective embodiment of the invention uses two independent magnetic tape players. Preferably, a first tape player generates sounds that help the user relax, and a second tape player generates sounds that include learning content.

Next, a specific embodiment of the present invention will be described using FIGS. 1 and 2. EEG signals derived from the epidermis of the human head are
The preamplifier circuit 10 shown in FIG. 1 amplifies the signal, and the filter circuit 20 extracts a specific frequency in the alpha wave region, for example, a component of 9112 to 10.5 It Z. The magnitude of this extracted signal is visually displayed on the display device 30 as a current value or an average value over a certain period of time. The signal extracted by the filter circuit 20 is judged by the signal comparator circuit 40, and a judgment signal based on a preset threshold value is output. On the other hand, there are two independent magnetic tape players 50 and 51, each of which is controlled by a determination signal from a signal comparator circuit 40. The magnetic player 50 is driven when the magnitude of a specific frequency component in the alpha wave region is below a predetermined threshold, and the magnetic tape player 51 is stopped at this time. On the other hand, the magnitude of a specific frequency component in the alpha region is
When the value exceeds the predetermined value, the magnetic tape player 50 stops, and the magnetic tape player 51 starts driving. The reproduced sound signals from each tape player are converted into audible sounds by the sound output device and outputted.

A third feature of the present invention is that the operation of the two tape players is switched only at specific frequencies in the alpha wave region. In general, alpha waves are 8H.
Although the frequency band is between 2 and 14T (Z), the device of the present invention is designed to respond only to alpha waves between 9H2 and 10.5 Hz.

As a result of many experiments, the frequency of alpha waves is 8H.
Between 2 and 9H2O, the level of consciousness is low and it is not suitable for learning. Also, from 11H7 to 14T (in the high frequency range of Z, consciousness is slightly tense and lacks flexibility.9H2
During alpha waves between 10.5 and 10.5 HZO, the body and mind are relaxed, the level of consciousness is high, and the mind is focused. Therefore, it is most efficient to learn from 9H2 to 10.5 HZ. This type of conventional biofeedback device is fundamentally different from the device of the present invention in that it responds in the same way to all alpha waves from 8H2 to 14H2.

In the embodiment shown in FIG. 1, the magnetic tape players 50 and 51 may be conventional tape recorders that are generally used as they are. In this case, it is possible to control the drive power of the tape recorder from the external power supply terminal of the tape recorder in use, and to control the intermittent operation using a signal in a specific frequency range of the alpha wave of the brain wave.

FIG. 2 is a diagram illustrating the operation of these invented devices. FIG. 2 (4) is an example of an electroencephalogram signal amplified by the preamplifier circuit 10, and FIG. 10+5u from 91'lZ of the alpha wave components extracted by
An example of the z component is shown. In the same figure (0 and plow are diagrams showing the drive/stop state of the tape recorder, (C') shows that the 9H2 to 10.5 Hz component of the alpha wave is being detected as it exceeds a predetermined threshold. It is a diagram showing that one tape recorder is being driven, and (b) is a diagram explaining that the other tape recorder is being driven while the predetermined threshold value is not reached. In other words, from time To to T, no alpha waves are detected and tape recorder D is driven, but between time T and T, alpha waves are detected and tape recorder D is stopped. This shows that tape recorder C starts driving.Also, between time T2 and T3, the alpha wave component decreases again, tape recorder C stops, and tape recorder D starts driving. ing.

Although we have explained brain waves above, similar effects can be obtained using electromyography, galvanic skin temperature, and skin temperature as biological signals. In other words, when you release your tension, relax, and concentrate, your muscle action potential decreases, skin resistance increases, and skin temperature rises. From such a phenomenon, the frequency for effectively extracting each signal component, that is, the electromyogram, can be extracted from 100 Hz to 100 OH2, and the skin resistance and degree temperature can be extracted from IT (2 components) from OHz.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, and FIGS. 2(4) to (g)) are signal waveform diagrams illustrating the operation. 10... Preamplifier circuit 20... Filter circuit 3
0... Display circuit 40... Signal comparator circuit 50.
51... Magnetic tape player 60... Sound output device Agent Patent attorney Takashi Kato Figure 1 Figure 2

Claims (4)

[Claims] (1) A means for deriving a biological signal from at least the human skin epidermis, a means for extracting a signal in a pre-selected frequency domain from the biological signal, and a means for extracting a signal in a pre-selected frequency domain from the biological signal, and a means for extracting a signal in a pre-selected frequency domain from the bio-signal; When input exceeds t
In a biofeedback device having means for generating a notification signal of l A biological return device characterized in that it generates a second notification signal. (2) Claim 1 characterized in that the first notification signal, the second notification signal, or the fourth and second notification signals are constituted by an acoustic signal generated from a magnetic tape player. The bioreturn device described. (3) The biological signal is a brain wave derived from the epidermis of the head, and the selected frequency region belongs to the frequency of alpha waves, and the magnitude of the frequency component of the specific region of the alpha wave is a predetermined magnitude. When the frequency component of the alpha wave is not reached a predetermined level, the magnetic tape player outputs a sound effect as a second notification signal in which the frequency component of the alpha wave in a specific region reaches a predetermined level. When the component exceeds a predetermined magnitude, the second notification signal is stopped and an acoustic signal containing the information to be learned is output from another magnetic tape player as the first notification signal. A biofeedback device according to claim 1. (4) A patent claim characterized in that the magnetic tape player is driven independently as an external auxiliary device, and that the driving power source is interrupted depending on the magnitude of a specific frequency component of the alpha wave. Range 2 or 3
The bioreturn device described in section.