Psychological stress assessment method based on multi-physiological-parameter integration

A technology of psychological stress and physiological parameters, which is applied in the field of psychological stress assessment based on the fusion of multiple physiological parameters, can solve problems such as insufficient psychological stress and emotional data, and achieve high typicality, high recognition rate, and rich database effects

Inactive Publication Date: 2014-02-19
YANSHAN UNIV
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Problems solved by technology

However, in China, psychological stress and emotional data are not sufficient

Method used

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  • Psychological stress assessment method based on multi-physiological-parameter integration
  • Psychological stress assessment method based on multi-physiological-parameter integration
  • Psychological stress assessment method based on multi-physiological-parameter integration

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0031] A psychological stress assessment method based on the fusion of multiple physiological parameters, implementing the method comprises the following steps:

[0032] Acquisition of four psychological stress electrophysiological signals, including ECG, EMG, pulse wave and EEG, such as figure 1 As shown, the subjects selected are 16 students who are about to graduate from the third year of Yanshan University for their oral defense, including 8 boys and 8 girls. They are all healthy, right-handed and under high pressure.

[0033] Studies have shown that low-level noise in the office, such as the sound of air-conditioning and heating, the sound of computers, and the whispers of colleagues around, will cause emotional and psychological pressure on the staff. In order to achieve a better stimulation effect, according to the survey results of dist...

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Abstract

The invention discloses a psychological stress assessment method based on multi-physiological-parameter integration. The method includes: designing a reasonable stimulation program, acquiring four types of electrophysiological signals, namely electrocardiogram signals, electromyographic signals, pulse wave signals and electroencephalogram signals from people suffering psychological stress; extracting affective features of the four types of electrophysiological signals; subjecting the extracted features to feature selection by means of Relief algorithm, genetic algorithm optimization and the like; acquiring related integration functions on the basis of basic probability assignment mass. According to the method, multi-parameter signals are subjected to acquisition, preprocessed, feature selection and psychological stress affective recognition and are integrated; compared to single-parameter classified recognition or multi-parameter data-level or feature-level integration, the method allows data information to be more fully utilized and psychological stress emotions to be more accurately recognized.

Description

technical field [0001] The invention relates to the technical field of psychological stress assessment methods, in particular to a psychological stress assessment method based on the fusion of multiple physiological parameters. Background technique [0002] Psychological stress, also known as "psychological stress", is when a person perceives or realizes that he is facing a critical and difficult environmental situation, he will have a tendency to go to sleep through various psychological and physiological reactions. The manifested state of psychosomatic tension is a cognitive and behavioral experience composed of psychological stressors and the subject's psychological stress response, manifested as inner conflict and the resulting emotional experience. [0003] An appropriate level of psychological stress is not harmful to the human body, but excessive psychological stress will bring a series of negative effects. Chronic psychological stress will cause a series of physiolog...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/16A61B5/0205
Inventor 李昕邵成成杜笑娟张云鹏孙跃家
Owner YANSHAN UNIV
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