SU1491450A1 - Apparatus for psychophysiological studies - Google Patents

Abstract

The invention relates to medical technology and can be used for psycho-physiological research. The purpose of the invention is to automate the measurement of the total residence time of a person under stress in a given period. The device contains weakly polarized electrodes 1 and 2, amplifier 3, analog switch 4, ADC 5, digital comparator 6, element 7, counter 8 of the stress state, counter 9 of the time of the experiment, master oscillator 10, decoder 11, indicator 12 The device registers the total residence time in a stressful state according to the quasistationary potential data for a specified period of time. 1 il.

Description

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The invention relates to medical i v | ike and can be used for psi-v (i | .n3no.norH4ecKHx studies.

The purpose of the invention is to automate the total residence time:.: .It is stumbled in a stressful state in a given i, i; i period.

The drawing shows a functional diagram of the device.

 The unit for psychophysiological NSs of the M interactions contains weakly polarized 1, and kg samples 1 and 2, amplifier 3, analogue k.k) h 4, analogue 1 o-digital converter (.LCP) 5. digital comparator 6, element 7, counter 8 time in stress- I oHOM state, counter 9 time exp. reading, which sets the generator 10, the decoder h P 1 I, indicator 12.

N4ipiiiu TBo functions as follows (6pa: ioNi Preliminary: yi) set the experiment time on the counter 9 experiment time and the quasi-stationary potential threshold (PSC), the excess of which is characterized by the presence of a stress state and in the examinee by a digital comparator 6. Weak polo the electrodes are mounted at the points of removal of the PCB and the device is turned on.

The quasistationary potentials are amplified by the amplifier 3, at the moment of the presence of a clock pulse from the master oscillator 10, are passed through an analog switch 4 and the ADC 5 is digitized.

The code corresponding to the current CPS value is converted by the decimator 11 and fed to the indicator 12, and also compared on the digital comparator b with the value

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set threshold of the PCB. In the event that the threshold value from the digital comparator 6 is exceeded, the And signal is sent to the element I. This signal, together with the impulse of the master oscillator 10, arriving at the second input of the element And 7, forms a counting impulse at the input of the counter 8 of the time in a stressful state. The total time of the experiment is determined by the presence of a signal at the second input of the counter 8 of the residence time in a stressful state, coming from the output of the counter 9 of the time of the experiment, which is clocked by the drivers and the generator 10.

Claims (1)

Invention Formula A device for psychophysiological studies, containing an amplifier with electrodes connected to its inputs, an indicator, characterized in that, in order to automate the measurement of the total time of the test person under stress at a given period, it contains serially connected master oscillator, analog key, analog-digital a converter, a digital comparator, an And element, a time counter in a stressful state, as well as an experiment time counter and a descrambler, the output of which is connected the decoder input, the second output of the master oscillator is connected to the input of the experiment time counter and the second input of the element I, the output of the experiment time counter is connected to the second input of the stress counter, and the electrodes are weakly controlled.