Oculomotor activity parameters of the operator in the P300 brain–computer interface with variating stimulus situations



We tested the hypotheses about the correlation of visual environment properties in the BCI P300 with oculomotor activity and operator efficiency. We varied level of stimulus intensification and the frame surrounding the stimulus elements. So we had four situation: 1) low contrast, without frame; 2) low contrast, with frame; 3) high contrast, without frame; 4) high contrast, with frame. 12 subjects participated. Our study showed that visual environment which provides lowest level of operator’s errors and so the highest efficiency of the BCI P300 workflow combined with lowest fixation dispersion and highest fixation duration. However, various subjects demonstrated the highest level of the efficiency at the different visual environments. We did not define the best type of the visual environment for the most efficient BCI P300 workflow. This results demonstrate the opportunity to use the eyetracking for optimization visual environment of the BCI P300 for most efficient and comfort operator’s workflow. The study was funded by RFH, grant 15-36-01386 “Consistent pattern of organization oculomotor activity in an environ- ment of brain-computer interface”.

General Information

Keywords: brain-computer interface, eyetracking, event-related potentials, P300 wave, visual attention, N200 wave

Journal rubric: Tools

Article type: scientific article

DOI: https://doi.org/10.17759/exppsy.2017100109

For citation: Basiul I.A. Oculomotor activity parameters of the operator in the P300 brain–computer interface with variating stimulus situations. Eksperimental'naâ psihologiâ = Experimental Psychology (Russia), 2017. Vol. 10, no. 1, pp. 129–138. DOI: 10.17759/exppsy.2017100109. (In Russ., аbstr. in Engl.)


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Information About the Authors

Ivan A. Basiul, Junior Researcher. Laboratory of Cognitive Processes and Mathematical Psychology, Institute of Psychology of the Russian Academy of Sciences, Lecturer of the Department of General Psychology, Moscow Institute of Psychoanalysis, Research laboratory assistant, Institute of Experimental Psychology of MSPPU, Moscow, Russia, ORCID: https://orcid.org/0000-0003-3153-2096, e-mail: basul@inbox.ru



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