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Science 30 January 1987:
Vol. 235. no. 4788, pp. 580 - 585
DOI: 10.1126/science.3810158
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Articles
Science, Vol 235, Issue 4788, 580-585
Copyright © 1987 by American Association for the Advancement of Science
Human neuroelectric patterns predict performance accuracy
AS Gevins,
NH Morgan,
SL Bressler,
BA Cutillo,
RM White,
J Illes,
DS Greer,
JC Doyle,
and
GM Zeitlin
In seven right-handed adults, the brain electrical patterns before accurate performance differed from the patterns before inaccurate performance. Activity overlying the left frontal cortex and the motor and parietal cortices contralateral to the performing hand preceded accurate left- or right-hand performance. Additional strong activity overlying midline motor and premotor cortices preceded left-hand performance. These measurements suggest that brief, spatially distributed neural activity patterns, or "preparatory sets," in distinct cognitive, somesthetic-motor, and integrative motor areas of the human brain may be essential precursors of accurate visuomotor performance.
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