EEG-based emotional perception and stimulus sample selection method for adolescent environmental psychology

Abstract

The invention discloses a system and a method for sensing emotion of juvenile environmental psychology based on electroencephalogram, and a method for selecting simulation samples. The system comprises an electroencephalogram signal acquisition module, an electroencephalogram signal preprocessing module, an electroencephalogram signal feature extraction module, an emotion sensing module and the like; and a built environment serves as a visual simulation source, wherein juveniles often contact with, participate in or are crazy about the built environment. The emotion sensing method comprises the steps of selecting the visual simulation source, acquiring the electroencephalogram signal, preprocessing the electroencephalogram signal, extracting electroencephalogram signal features, training a model, determining emotion intensity and the like. According to the method for selecting the simulation samples, arousal dimensionality and valence dimensionality are divided according to 5 emotion intensities, and rectangular select boxes are determined non-equidistantly according to the actual selected condition of the samples and the distribution state of the samples in a two-dimensional space. The emotion sensing system, the emotion sensing method and the method for selecting the simulation samples have the advantages of high emotion sensing ability, object extending ability and the like, and have high application values in environmental psychology research.

Description

technical field [0001] The invention relates to an EEG-based method for emotional perception and stimulus sample selection of teenagers' environmental psychology. Background technique [0002] According to statistics, the number of minors under the age of 18 in my country is as high as 367 million. According to conservative estimates, there are as many as 30 million people with various learning, emotional and behavioral disabilities. In recent years, the incidence of psychological problems among Chinese adolescents has shown an obvious upward trend in recent years, and the incidence of children's psychological and behavioral problems is as high as 14% to 17%. Among them, emotional problems (such as anxiety, depression, etc.) are one of the common psychological problems, with a high incidence rate and wide spread, and affect the individual's behavior and psychosocial function. The World Health Organization (WHO) predicts that children and adolescents with neuropsychological...

AI Technical Summary

Problems solved by technology

In addition, in terms of the accuracy of emotion description, in the field of psychology and computer emotion computing, although there are related technical foundations for emotion recognition and calculation of biosignals, including EEG, ECG, respiration rate, blood oxygen saturation, body surface Single or multi-modal emotion recognition models such as temperature, but the above-mentioned models are mainly used to identify some typical emotional types, such as: sadness, happiness, disappointment, anger, etc. These emotional states are usually stimulated by stimuli that contain storylines. Obviously, , the above typical emotional types are not sufficient to describe the natural emotional states of adolescents in different built environments

[0006] In addition, in terms of the selection of stimulus sources, the existing methods are relatively simple, most of which include the stimulus source of the story; and do not distinguish the content of the stimulus object and the source itself, there is a large chance in the actual operation, and the stimulus effect is not good. Satisfactory

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