JPS61141344A - Method and apparatus for measuring skin electric activity - 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 (Field of Industrial Application) The present invention relates to a method for measuring electrodermal activity and an apparatus therefor, which are capable of exploring the relationship between constitution and personality and classifying people into different types.

The electrodermal activity mentioned above refers to the potential change induced when the sympathetic nerve trunk is stimulated.
rmal Active (abbreviations; E, D, A). E, D, and A are a series of reactions in which relatively stable parts and unstable parts are mixed.

On the other hand, the autonomic nervous system includes the sympathetic nervous system and the parasympathetic nervous system.
Sympathetic nerves are cohesive, exciting, commanding, intermittent, and act in the direction of tension, while parasympathetic nerves are open, calm, free, continuous, and act in the direction of relaxation. . Therefore, in daily life, if it is possible to distinguish by measurement which type of person has a strong sympathetic or parasympathetic nervous system, it will be useful for determining career aptitude and selection.

[Conventional technology]

Measuring human personality and motor skills, testing 9 work personalities,
For example, Japanese Patent Publication No. 52-38679 discloses techniques for devices and devices that can diagnose autonomic nervous function or automatically judge stimulus responses.

No. 52-25671, No. 52-4878, No. 53-
It is disclosed in Japanese Patent No. 4351.

[Problem that the invention seeks to solve]

However, the conventional disclosed techniques require the test subject to test the stamping function through tapping motions, or perform operations such as transcription based on work descriptions, or apply certain types of stimulation to the living body to test the S.
The visual or auditory function is tested based on the mouth-press response, or the stimulation response is electrically examined to diagnose the functional status of each organ along the route and the balance state of the autonomic nervous system.

Although each of the above-mentioned disclosed techniques has features that achieve the respective objectives, they are different from the objectives and configurations aimed at by the present invention.

[Means for solving problems]

That is, the present invention provides E and D regarding the reaction of the test subject.

The measured values of the relatively stable part and the measured value of the unstable part of ^ were digitized and displayed, and these were automatically identified by a computer, and the obtained data used 2 hours as a parameter. Store it as a value corresponding to the actual resistance j value for later data processing.

Under the condition that the data is output as a value corresponding to the human psychological state.

The purpose is to diagnose personality by exploring the relationship between constitution and personality.

To achieve the above objects, the present invention provides a method for measuring electrodermal activity, which transmits information from the limbic system or hypothalamus to the first and eighth thoracic spinal cords, and then to the middle cervical ganglion and lower cervical spinal cord. The signal is transmitted to the first and second thoracic ganglia, and then to the fifth thoracic ganglion. After transmitting to the 8th M nerve and the 1st thoracic nerve and further to the brachial plexus.

The sympathetic nerves in the route of transmission to the sweat gland ducts and sweat gland cells in the fingertips were then used to stimulate each part of the cerebrum through the subject's auditory senses, causing the left and right hemispheres to react while concentrating the nerves on the stimulated parts.

Changes in sweat gland cells that change their shape, quality, and membrane are converted into changes in current and voltage, which are then printed as data.The data is analyzed and personality is tested by measuring left-brain and right-brain dominance.

Another aspect of the present invention is a method for measuring electrodermal activity, which transmits information from the limbic system or hypothalamus to the first and eighth thoracic spinal cords and then to the middle and lower cervical ganglia. transmits to the 1st and 2nd thoracic ganglia.

Then the fifth. The sympathetic nerves transmit to the 8th cervical nerve and 1st thoracic nerve, then to the brachial plexus, and then to the sweat gland ducts and sweat gland cells in the fingertips, which sequentially stimulate each part of the cerebrum through the subject's hearing. Equipped with an electroencephalogram sensor to capture the sympathetic nerves in a state where the nerves are focused on the stimulated area and reacted, and the sensor is used to record data by converting changes in sweat gland cells into changes in current and voltage. In addition, a microcomputer with automatic calibration function, automatic sensitivity switching function, input switching function, data collection function, display function, printer and hard copy function is installed to process these data.

This is a personality test that measures left hemisphere and right hemisphere dominance.

[For production]

Measurement according to the present invention is carried out as follows. First, a human body sensor is attached to a subject.

On the other hand, we put headphones on our ears, listen to the cassette playback tape, and use our hearing to tell us which parts of the body we should concentrate our nerves on.We concentrate the nerves on each part of our body, stimulate the cerebrum, and then sense the sympathetic nerves obtained in that stimulated state. A constant current is passed to pick up the voltage at the resistor, and a voltage proportional to the resistance value is obtained. In this case, the current value is set to be extremely low so as not to cause an electric shock to the human body, and does not change at all during the measurement.

The voltage value then becomes a digital value that can be read by a computer through an A/D converter.

The data is sent to the computer and collected.

Next, the collected data is displayed, recorded, commanded, etc., and controlled by a data processing device using a microcomputer with high-resolution graphic functions.

The data collected measures only Oita.
At the same time, the output is displayed as a graph on the display, and the measurement person reads the display. Or record the data on a floppy disk.

Note that the measured and recorded data can be printed out using a printer if necessary.

〔Example〕

The present invention will be explained in detail below. FIG. 1 shows an outline of the apparatus system of the present invention, which is composed of a data collection section (^), a display/recording/command section (B), and various input/output sections (C).

The data collection unit (A) includes 1 human body sensor 2. Electrical resistance measuring device 3. Consists of A/D converter 4.

In order to obtain the resistance value of the human body, a constant current is passed through the sensor 2 worn on the subject, and a voltage proportional to the resistance value is obtained. In this case, in order to prevent electric shock to the human body, the current value is kept extremely low and set so that it does not change at all during measurement. The voltage value is passed through the A/D converter 4 to the output terminal 4□1. stomach,. 1. Yo71. −□1o
1 will be.

The display/record/command unit CB) is equipped with a data processing and instruction computer system that has a measurement program and a display program, and the various input/output units (C) include a command input unit for the comviator, data recording and reading. Section 2 screen display section.

It is equipped with a printing/output section, etc. Furthermore, it has a high-resolution graphic function using a data processing device PiC using a microcomputer for processing the data obtained by the data collection section (A).

The data collection unit (A) and various input/output units (C) described below
It plays the role of controlling various devices.

The various person output section (C) outputs and displays the data obtained by the data collection section (A) and the display/record/instruction section (B) on a cathode ray tube screen in a form that is easy for the measurer to understand. Print out the data on paper and record the obtained data on a floppy disk.

In the figure, l is the main body of the measuring device which has a built-in microcomputer for measuring electrodermal activity, and has automatic calibration function, automatic sensitivity switching function, input switching function, data collection function, display function, printer and hard copy function. Equipped with

The above-mentioned automatic calibration function built into the microcomputer calibrates to the resting value before measurement, and this serves as a reference base. Furthermore, the automatic sensitivity switching function works to automatically switch the sensitivity because the peak values of E, D, and A change depending on the subject. And what about the input switching function?

To measure multiple subjects at the same time with one measuring device,
This is a function that automatically switches the input of the microcomputer. Furthermore, the data collection function is E, D,
The measurement data of A is saved on floppy disk F. Display functions are E, D,
The measurement results of A are displayed graphically on the CRT 6.
Display in the format of specimen number, file number, etc. The printer and hard copy function is a function that prints out the measurement results displayed on the cathode ray tube and displays the hard copy and measurement values.

2 is an insertion slot for a floppy disk F as a data collection function, and 3 is a human body sensor used for the subject. Specifically, an electroencephalogram plate electrode is attached to the fingertip. 4 indicates a sensor box, to which multiple sensors can be connected, and in fact, measurements can be taken by up to 8 to 10 people at the same time. 5 is a keyboard connected to the microcomputer, 6 is a cathode ray tube 27 as a display function.
7. is a part of the printer as a printer function. indicates the print supply outlet.

Figure 2 shows a schematic diagram of the measurement system for the subject.

and a data collection unit (A) and a display/record/command unit (B).

It is divided into various parts including input and output parts (C).

Among the above-mentioned parts, the data collection part (A) passes a constant current through the human body to obtain the resistance value of the human body using an electric resistor R, and Ff
1 Obtain a voltage proportional to the resistance value. This voltage value becomes a digital value that can be read by a computer through the A/D converter C.

sent to the computer itself.

Next, the display/record/command section (B) is the data collection section (^
) is a processing device consisting of one microcomputer, which forms the part that processes the data obtained in It has a controlling role.

Furthermore, various input and output sections (C) output the data obtained by the data collection section (A) and the display/record/command section (B) in a form that is easy for one person to understand, and also output the data obtained on a floppy disk. It has the role of storing collected data.

FIG. 3 shows a detection circuit for E, D, and A. To measure E, D, and A, an electroencephalogram plate electrode is used and a Wheatstone bridge circuit is installed as a detection circuit. In the above circuit, in order to increase the sensitivity, it is necessary to add electricity to the electroencephalogram plate electrode. (tB:) IAi
< EIIJ "T41" 261 Part 1 In this method, even if the electrode and the human body are insulated.

Because the detection circuit and the human body are not insulated, if a problem occurs in one circuit, current may flow to the human body and cause an electric shock.

In the circuit of the present invention, a fort coupler is used to isolate the human body and the detection circuit.

The circuit applies a voltage (Eo) to the fort coupler (L) of the output section, converts it into light, and insulates it from the circuit. If the voltage (Eo) is constant, the light-receiving current flowing through the input section Fort Cuff Blur (rt) can be determined by equation (A).

(E+"'I+ ・Rw) 1) ・!2- Change in light receiving current of dark current input section fort coupler (rz) (
xo) as an output.

4 and 5 to 8 show the circuit configuration of the analog board, and in the measurement principle based on this, the electroencephalogram bridge is Ft, T1. Since the resistance between the electrodes changes in response to a change in A, this characteristic is used to extract the output.

In the reference voltage generation circuit shown in Fig. 5, a Zener diode D with a small temperature coefficient is used to operate an operational amplifier
C) E as a voltage holly type.

Efforts are being made to stabilize the supply voltage of D and A. Note that the amplification factor of the operational amplifier ^1 is set to 1.

In the Buffer circuit of Fig. 6, It, D
, If the voltage applied to A is constant, the formula It, IR holds true according to Ohm's law, and! !・Ro・A
The output current of is converted to I/V by OP-^np and taken out as output.

In order to prevent commercial frequency (50/601h) noise, etc., a π-type filter is inserted in front of the first stage QP-Amp.

The output of the 1/V conversion circuit is determined by ea -1oXR.

The automatic sensitivity switching (AGC) circuit shown in FIG.

Since sensitivity differs depending on the subject, the sensitivity is automatically adjusted to a weak level, and the output voltage of the circuit is changed by a feedback resistor switched by an analog switch.

Note that the amplification factor of the AGC circuit is determined by equations (1) to (3). The amplification factors are XI, X2. The range select signal is set to C0N so that it can be set to x5 times, and to inform the CPU which range is actually selected.
When received from the TR0L Bus, the launch driver circuit transmits the range select signal to the CPU.

The filter circuit shown in FIG. 8 includes an integrating circuit as a filter circuit in order to absorb disturbance noise and the like.

The output ee of the integrating circuit is determined by the following equation (4).

Although detailed illustration of the circuit is omitted, the multiplexer circuit is a circuit that receives a select signal from the C0NTR0L Bus and switches between the human input signals (1) to (8).

The ADC circuit also has the function of converting an analog signal into a digital signal and transmitting the data to the CPU.

Next, a specific usage method in an embodiment of the present invention will be explained.

First, insert the floppy disk F into the insertion lower 1 of the measuring machine main body 1.
The human body sensor 2 is attached to the fingertip of the test subject.

Next, from the menu displayed on the CRT 6, type in the desired program name and press the key □I5 (71"
RETURN”-1-ya, o, tsu, yoei,
1. By pressing the necessary keys according to the instructions displayed on the cathode ray tube 6, the intended purpose is achieved.

In addition, if you type in a mistake, a “?” message will appear on the CRT.
``Other error marks are displayed to notify the measurer and instruct them to type in again.

〔Effect of the invention〕

Since the present invention has the above-mentioned structure, it is possible to accurately examine the personality and aptitude of a person by capturing the workings of the autonomic nervous system of multiple people in a short time and at the same time. It is novel and useful as a method and device for measuring electrical activity.

[Brief explanation of the drawing]

Figure 1 is an external perspective view of the device of the present invention, Figure 2 is a schematic explanatory diagram of the measurement system according to the present invention, and Figure 3 is E, D, ^.
Detection circuit diagram, Figure 4 is a block diagram of the measurement system circuit, Figure 5 is a block diagram of the analog board circuit, Figures 6 to 8 are circuit diagrams of each part of Figure 5, and Figure 6 is a reference circuit diagram. Voltage generation circuit diagram. FIG. 7 is an I/V conversion/buffer circuit diagram, FIG. 8 is an automatic sensitivity switching (8GC) circuit diagram, and FIG. 9 is a filter circuit diagram. 1... Measuring machine body. 2... Floppy disk insertion slot. 3...Human body sensor. 4...Sensor box. 5...Keyboard. 6... Braun tube. 7... Printer part 71... Printed matter supply outlet.

Claims (2)

[Claims] (1) Transmits from the limbic system or hypothalamus to the 1st and 8th thoracic spinal cords, then to the middle and lower cervical ganglia, and then to the 5th thoracic ganglion. , to the 8th cervical nerve and the 1st thoracic nerve, and then to the brachial plexus, and then to the sweat gland ducts and sweat gland cells in the fingertips, and sequentially to each part of the cerebrum through the subject's hearing. The left and right brains are stimulated to concentrate the nerves on the stimulated area, and the changes in the sweat gland cells that change their shape, quality, and membrane are printed as data and printed as changes in current and voltage, and the data is analyzed. A method for measuring electrodermal activity characterized by testing personality by measuring left hemisphere and right hemisphere dominance. (2) Transmits from the limbic system or hypothalamus to the 1st and 8th thoracic spinal cords, then to the middle and lower cervical ganglia, and then to the 5th thoracic ganglion. , to the 8th cervical nerve and the 1st thoracic nerve, and then to the brachial plexus, and then to the sweat gland ducts and sweat gland cells in the fingertips, and sequentially to each part of the cerebrum through the subject's hearing. Equipped with an electroencephalogram sensor that detects sympathetic nerves when a stimulus is applied and the nerves focus on the stimulated area and react, and this sensor records data by converting changes in sweat gland cells into changes in current and voltage. At the same time, a microcomputer with automatic calibration function, automatic sensitivity switching function, input switching function, data collection function, display function, printer, and hard copy function is installed to process these data. An electrodermal activity measuring device characterized by measuring brain dominance and testing personality.