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Brain wave instrument for psychognosis

A tester and psychological technology, applied in the field of brain wave test devices, can solve the problems of many stimulation times and long test time, and achieve the effects of high signal amplification, shortened test time, and adjustable signal amplification.

Inactive Publication Date: 2005-04-20
北京新科永创科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the superimposed average method has the disadvantages of many stimulation times and long test time, which brings great inconvenience to practical application.

Method used

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  • Brain wave instrument for psychognosis
  • Brain wave instrument for psychognosis
  • Brain wave instrument for psychognosis

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Embodiment Construction

[0019] The realization principle diagram of the present invention is as figure 1 shown. An EEG psychological tester consisting of a projector, screen, earphones, brain electrodes, acquisition and conversion circuit, computer, etc., is characterized in that the brain electrodes placed on the scalp are connected to the EEG acquisition and conversion circuit through shielded wires , the acquisition and conversion circuit is connected with the input end of the computer, and the projector and the earphone are connected with the output of the computer.

[0020] The EEG signal acquisition and conversion circuit, such as figure 2 As shown, it is composed of a preamplifier, a notch filter, a high-pass amplification filter, a low-pass amplification filter and an A / D converter connected sequentially; the input end of the EEG signal acquisition and conversion circuit is connected to the brain electrode placed on the scalp , the output of the A / D converter is connected to the computer t...

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Abstract

Said invention relates to electronic test instrument especially a brain test instrument for psychology test and health supervision, which consists of brain electrode, signal acquisition and conversion circuit, computer, earphone and projector. The brain electrode put on head skin is connected with brain electric signal acquisition and conversion circuit through shielded wire then connected with computer. The projector and earphone are connected with computer output. By making stimulation (vision or audition ) to the testee, then taking event-related potential to analyzing from the real time collected brain wave signal by brain electrode on scalp, so making judgment to the body and mind state of testee. Said invention has wide paramodulation range of signal amplification, short test time and simple operation.

Description

technical field [0001] The invention relates to an electronic testing instrument, in particular to a brain wave testing device applicable to the fields of psychological testing and health monitoring. Background technique [0002] Instrumental psychological testing can be traced back to 1895. It was the first time that Italian criminal psychologist C. Lombroso used a water chart pulse recorder for psychological testing. This can be regarded as the earliest attempt to use instrumental psychological testing. In 1949, Keeler developed a recorder that could continuously record multiple physiological indicators such as blood pressure, pulse, respiration, skin electricity, etc., which further improved the accuracy of psychological tests with instruments. These early psychological testers are often referred to as Polygraph psychological testers, or are simplified to Polygraph. At present, most of the psychological testing instruments widely used in the world adopt polygraph (Polygr...

Claims

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Application Information

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IPC IPC(8): A61B5/0476A61B5/16
Inventor 李学恩王艳军董松樵张吉华
Owner 北京新科永创科技有限公司
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