Method for classifying individual differences in psychological stress assessment

Abstract

The invention discloses a method for classifying individual differences in psychological stress assessment. The method includes steps of 1, designing an effective experimental scheme for inducing psychological stress in laboratories and creating a stimulation material library for psychological stress materials; 2, acquiring psychological stress data of sEMGs (surface electromyographic signals); 3, preprocessing the raw data; 4, extracting and processing psychological stress characteristics of the sEMGs; 5, classifying psychological stress assessment by the aid of a classifier of an improved support vector machine. The method has the advantages that the psychological stress data are acquired via the simple and feasible experimental scheme, so that researchers can deeply understand psychological stress on the basis of careful analysis on mass data, and the method is beneficial to understanding emotional behavior of human; psychological stress assessment and research implemented by the method on the basis of the psychological signals have objective characteristics as compared with a self-assessment mode implemented by the aid of questionnaires and the like, accordingly, the method is wide in application range and favorable for psychological stress and health research.

Description

technical field [0001] The invention relates to a physiological signal psychological stress assessment method, in particular to a classification method aimed at individual differences in the psychological stress assessment. Background technique [0002] Both research and practice have shown that an appropriate degree of psychological stress will generate positive energy for people, but once the psychological pressure is too large, it will have many negative effects. Chronic psychological stress will bring a series of pathological and physiological risks, which directly affect health. An effective psychological stress assessment method can detect and evaluate psychological stress and remind people to pay attention to health. [0003] The methods commonly used in psychological stress assessment in the field of psychology include interview method, psychological test method and questionnaire survey method. Although these methods can reflect the individual's psychological press...

AI Technical Summary

Problems solved by technology

When evaluating psychological stress, traditional algorithms are mostly used for feature extraction and selection, and then directly sent to the classifier for classification, without adding relevant sample information for specific problems to improve

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