Decoding covert spatial attention using electrocorticographic (ECoG) signals in humans

被引：42
|
作者：
Gunduz, Aysegul [1 ,2 ]
Brunner, Peter [1 ,2 ]
Daitch, Amy [3 ]
Leuthardt, Eric C. [3 ,4 ]
Ritaccio, Anthony L. [2 ]
Pesaran, Bijan [5 ]
Schalk, Gerwin [1 ,2 ,4 ,6 ]
机构：
[1] NYS Dept Hlth, Wadsworth Ctr, BCI R&D Progr, Albany, NY 12201 USA
[2] Albany Med Coll, Dept Neurol, Albany, NY 12208 USA
[3] Washington Univ, Dept Biomed Engn, St Louis, MO USA
[4] Washington Univ, Dept Neurosurg, St Louis, MO USA
[5] NYU, Ctr Neural Sci, New York, NY 10003 USA
[6] SUNY Albany, Sch Publ Hlth, Albany, NY USA
来源：
NEUROIMAGE | 2012年 / 60卷 / 04期
关键词：
Visual spatial attention; Covert attention; Electrocorticography (ECoG); HUMAN SENSORIMOTOR CORTEX; SELECTIVE ATTENTION; SPECTRAL-ANALYSIS; MULTIPLE STIMULI; VISUAL-CORTEX; AREAS V1; FREQUENCY; SINGLE; POTENTIALS; MODULATION;
D O I：
10.1016/j.neuroimage.2012.02.017
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
This study shows that electrocorticographic (ECoG) signals recorded from the surface of the brain provide detailed information about shifting of visual attention and its directional orientation in humans. ECoG allows for the identification of the cortical areas and time periods that hold the most information about covert attentional shifts. Our results suggest a transient distributed fronto-parietal mechanism for orienting of attention that is represented by different physiological processes. This neural mechanism encodes not only whether or not a subject shifts their attention to a location, but also the locus of attention. This work contributes to our understanding of the electrophysiological representation of attention in humans. It may also eventually lead to brain-computer interfaces (BCIs) that optimize user interaction with their surroundings or that allow people to communicate choices simply by shifting attention to them. (C) 2012 Elsevier Inc. All rights reserved.
引用
收藏
页码：2285 / 2293
页数：9
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