Attention Enhanced Brain Computer Interface System

At present,with the development of computer science and bioinformatics engineering technology,video games are combined with Brain Computer Interface(BCI)system.BCI video game has been widely used in the field of cognitive science,many scholars are committed to using the video games to enhance subject’s attentional states.The video games based on BCI technology has become an effective way of attention enhancement training.However,theirvideo games are lack of feedback mechanisms andadaptability,and these systems cannot adaptivelyadjust the task difficulty of the game based on the performanceof subjects by analyzing subjects’behavioral data inreal time.In addition,they rarely use the experimentscombined behavioral with cognitive psychology to evaluatethe attentional states of subjects.In this paper,we designed a BCI-based multitasking adaptive attention training enhancement system:CarRec.CarRec is a 3D racing game developed on the Unity3D game engine development platform,and it is a multitasking game that includes tasks of traditional racing game and a lot of cognitive tasks.Our game introduced a neural feedback mechanism,the system dynamically and adaptively adjusts the difficulty of game tasks according to the subjects’ performance.And we also combined the EEG data analysis results and behavioral data analysis results to comprehensively analyze the subjects’ attentional states.For the analysis of EEG signals,we first filter and extract the EEG signals,and then we use the method of lateralization to analyze the attentional states of the subjects.At then,we also use the behavioral scale to analyze and evaluate the attentional states subjects.Finally,we combined the EEG data analysis results and behavioral data analysis results to comprehensively analyze the subjects’ attentional state.Experimental results show that through the system for some time training,the attentional states of control subjects and subjects with anxiety symptoms have been enhanced.The study was conducted through game training to enhance the attention state of the subjects and to use physiologic and behavioral analysis to assess the subject’s attention.The results show that the attention enhancement training system can enhance the attention of subjects.This system provides a new theoretical basis and new ideas for attention-assisted training.