Simulation method and system for rapidly inducing fatigue state based on audio-visual stimulation

Abstract

The invention provides a simulation method and system for rapidly inducing a fatigue state based on audio-visual stimulation. The method comprises the steps of storing a plurality of types of picturesand sounds with different frequencies, and setting corresponding simulation keys according to the types of the pictures and the frequencies of the sounds; randomly displaying a picture or playing sound, and setting the staying time of picture display and sound playing; selecting a corresponding simulation key by a user according to the displayed picture or the played sound, and marking the selection of the user; and collecting brain waves of the user, constructing a brain network model, and calculating coherence according to the brain network model to serve as an index of fatigue induction effectiveness. According to the method, through visual and auditory angles, the process of inducing fatigue is simulated, the time of inducing fatigue is greatly shortened, the cost of inducing fatigueis reduced, the time of inducing fatigue is shortened, and the cost of inducing fatigue is reduced.

Description

technical field [0001] The invention belongs to the technical field of fatigue state research, and in particular relates to a simulation method and system for rapidly inducing fatigue state based on audio-visual stimulation. Background technique [0002] Fatigue refers to a phenomenon of decreased labor ability caused by overwork, which is manifested in: decreased flexibility of movement, slow response, increased work error rate, decreased coordination, and accompanied by subjective feeling of fatigue and weakness. There are more and more serious consequences. For example, fatigue driving accounts for 17% of traffic accident deaths in China, accounting for a very high proportion of traffic accidents; Mechanism into research. [0003] Human receptors include vision, hearing, touch, taste and smell, among which the information obtained by human beings relying on vision and hearing accounts for 94% of the total information obtained. In this way, most daily fatigue is also fat...

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Problems solved by technology

[0004] Most of the fatigue-inducing paradigms in existing studies use methods such as continuous high-speed driving for more than three hours, night-time sleep deprivation, and long-term execution of tasks combined with sleep deprivation, which are effective for studying the neural mechanisms under fatigue; however, from the perspective of cost From the perspective of time and time, these fatigue-inducing paradigms have certain requirements for the implementation environment, and are not universal for workers in related research fields.

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