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Effects of Visual Attention on Tactile P300 BCI.

Chen, Zongmei and Jin, Jing and Daly, Ian and Zuo, Cili and Wang, Xingyu and Cichocki, Andrzej (2020) 'Effects of Visual Attention on Tactile P300 BCI.' Computational Intelligence and Neuroscience, 2020. ISSN 1687-5265

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Abstract

Objective. Tactile P300 brain-computer interfaces (BCIs) can be manipulated by users who only need to focus their attention on a single-target stimulus within a stream of tactile stimuli. To date, a multitude of tactile P300 BCIs have been proposed. In this study, our main purpose is to explore and investigate the effects of visual attention on a tactile P300 BCI. Approach. We designed a conventional tactile P300 BCI where vibration stimuli were provided by five stimulators and two of them were fixed on target locations on the participant’s left and right wrists. Two conditions (one condition with visual attention and the other condition without visual attention) were tested by eleven healthy participants. Main Results. Our results showed that, when participants visually attended to the location of target stimulus, significantly higher classification accuracies and information transfer rates were obtained (both for p< 0.05). Furthermore, participants reported that visually attending to the stimulus made it easier to identify the target stimulus in random sequences of vibration stimuli. Significance. These findings suggest that visual attention has positive effects on both tactile P300 BCI performance and user-evaluation.

Item Type: Article
Uncontrolled Keywords: Humans, Physical Stimulation, Photic Stimulation, Touch, Visual Perception, Attention, Event-Related Potentials, P300, Vibration, Adult, Female, Male, Young Adult, Brain-Computer Interfaces, Healthy Volunteers
Divisions: Faculty of Science and Health > Computer Science and Electronic Engineering, School of
Depositing User: Elements
Date Deposited: 27 May 2021 11:05
Last Modified: 27 May 2021 11:15
URI: http://repository.essex.ac.uk/id/eprint/29789

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