Optimizing the Performance of the Visual P300-Speller Through Active Mental Tasks Based on Color Distinction and Modulation of Task Difficulty

Conclusion This study investigated the influence of different active mental tasks on the performance optimization of the P300-speller. We found that mental tasks based on color distinction and varying in difficulty induce different ERP amplitudes that are more obvious than those elicited by a counting task. Active mental tasks based on task difficulty can, therefore, significantly improve the accuracy and ITR of the P300-speller and optimize its performance. Ethics Statement This study was carried out in accordance with the recommendations of “the ethics committee of Changchun University of Science and Technology (CUST)” with written informed consent from all subjects. All subjects gave written informed consent in accordance with the Declaration of Helsinki. The protocol was approved by the “the ethics committee of Changchun University of Science and Technology (CUST)”. Author Contributions The manuscript was written with contributions from all authors. All authors have approved the final version of the manuscript. QL designed experiments. ZL performed experiments. ZL and JY analyzed experimental results. NG checked and verified the experimental results. QL and ZL wrote the manuscript. Funding This work was financially supported by the National Natural Science Foundation of China (grant numbers 61773076 and 61806025), Jilin Scientific and Technological Development Program (grant numbers 20190302072GX and 20180519012JH), and Scientific Re...
Source: Frontiers in Human Neuroscience - Category: Neuroscience Source Type: research