A binary motor imagery tasks based brain-computer interface for two-dimensional movement control.

A binary motor imagery tasks based brain-computer interface for two-dimensional movement control.

J Neural Eng. 2017 Nov 13;14(6):066009

Authors: Xia B, Cao L, Maysam O, Li J, Xie H, Su C, Birbaumer N

Abstract
OBJECTIVE: Two-dimensional movement control is a popular issue in brain-computer interface (BCI) research and has many applications in the real world. In this paper, we introduce a combined control strategy to a binary class-based BCI system that allows the user to move a cursor in a two-dimensional (2D) plane. Users focus on a single moving vector to control 2D movement instead of controlling vertical and horizontal movement separately.
APPROACH: Five participants took part in a fixed-target experiment and random-target experiment to verify the effectiveness of the combination control strategy under the fixed and random routine conditions. Both experiments were performed in a virtual 2D dimensional environment and visual feedback was provided on the screen.
MAIN RESULTS: The five participants achieved an average hit rate of 98.9% and 99.4% for the fixed-target experiment and the random-target experiment, respectively.
SIGNIFICANCE: The results demonstrate that participants could move the cursor in the 2D plane effectively. The proposed control strategy is based only on a basic two-motor imagery BCI, which enables more people to use it in real-life applications.

PMID: 29130453 [PubMed - as supplied by publisher]

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