Study Of Emotional Change Based On The Analysis Of The Sample Entropy

In the process of human emotions analysis and exploration,electroencephalogram has been playing a very important role.When the mood of the subject changes,the EEG signal will follow the corresponding characteristics of the changes.Analysis of these features of the EEG signal is essential to study the emotions.Nonlinear dynamics is a study of the quantitative and qualitative laws of various motion states in nonlinear dynamical systems,especially the science of evolutionary patterns of motion patterns.It has become a hot topic for researchers to study the application of EEG signals.In order to study the use of nonlinear dynamics theory to analyze the changes of EEG signals in different mood changes,this study used images to visualize emotional evoked subjects and extract their EEG information in different sex subjects.The sample entropy analysis method was used to analyze the complexity of brain waves in the alpha wave and theta wave,when the subjects had different mood changes.The experiment was mainly to analyze the changes of alpha wave and theta wave complexity in the two different sex groups of males and females when generating different emotions.Through this experiment,corresponding to the brain changes can be more in-depth exploration and familiar with the main body to produce different emotional changes in the case.This will have a far-reaching impact on the future by analyzing the human brain to identify the subjective mood.Observing the results of the experiment,we can see that the complexity of the EEG signal when viewing the positive picture is greater than the complexity of the negative emoticon when the subject is subjected to emotional evoked.In this experiment,we study the two waves of alpha wave and theta wave respectively,and the conclusion is the same.But if we compare the experimental results of alpha wave,this regularity is stronger.It can be seen that these subjects are more likely to be positively influenced by positive emotions than those who are negative emotions.Positive emotions can stimulate the brain of the subject to make the brain active.Women are more sensitive to the picture than the male subjects.The stimulation of the brain’s brain activity is greater than that of men and women are more susceptible to emotional impact.When the subjects were emotionally evoked,the experimental results of the brain occipital lobe alpha wave were more regular than the brain parietal lobe.The experimental results of the band are more regular than the parietal lobe.when the subject changes mood,the occipital lobe is more affected and more active than the parietal lobe.