Two-dimensional movement control using electrocorticographic signals in humans

被引:325
作者
Schalk, G. [1 ,2 ,3 ]
Miller, K. J. [4 ,5 ]
Anderson, N. R. [6 ]
Wilson, J. A. [7 ]
Smyth, M. D. [3 ]
Ojemann, J. G. [8 ]
Moran, D. W. [6 ]
Wolpaw, J. R.
Leuthardt, E. C. [3 ,6 ]
机构
[1] New York State Dept Hlth, Wadsworth Ctr, BCI R&D Progr, Albany, NY 12237 USA
[2] Albany Med Coll, Dept Neurol, Albany, NY 12208 USA
[3] Washington Univ, Sch Med, Dept Neurol Surg, St Louis, MO USA
[4] Univ Washington, Dept Phys, Seattle, WA 98195 USA
[5] Univ Washington, Dept Med, Seattle, WA USA
[6] Washington Univ, Dept Biomed Engn, St Louis, MO USA
[7] Univ Wisconsin, Dept Biomed Engn, Madison, WI USA
[8] Univ Washington, Sch Med, Dept Neurol Surg, Seattle, WA 98195 USA
关键词
D O I
10.1088/1741-2560/5/1/008
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
We show here that a brain-computer interface (BCI) using electrocorticographic activity (ECoG) and imagined or overt motor tasks enables humans to control a computer cursor in two dimensions. Over a brief training period of 12-36 min, each of five human subjects acquired substantial control of particular ECoG features recorded from several locations over the same hemisphere, and achieved average success rates of 53-73% in a two-dimensional four-target center-out task in which chance accuracy was 25%. Our results support the expectation that ECoG-based BCIs can combine high performance with technical and clinical practicality, and also indicate promising directions for further research.
引用
收藏
页码:75 / 84
页数:10
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