Human Neuroelectric Patterns Predict Performance Accuracy

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...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1987-01, Vol.235 (4788), p.580-585
Main Authors: Gevins, Alan S., Morgan, Nelson H., Bressler, Steven L., Cutillo, Brian A., White, Roseann M., Illes, Judy, Greer, Douglas S., Doyle, Joseph C., Zeitlin, Gerald M.
Format: Article
Language:English
Subjects:
Adult
Amplitude
Behavioral psychophysiology
Biological and medical sciences
Brain
Cerebral Cortex - physiology
Cognition - physiology
Covariance
Electrodes
Electroencephalography
Electrophysiology
Fingers
Functional Laterality
Fundamental and applied biological sciences. Psychology
Humans
Laplacians
Left handedness
Male
Mathematical intervals
Motor Activity - physiology
Musical intervals
Nervous system
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Right handedness
Time Factors
Visual Perception - physiology
Waveforms
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Summary: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.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.3810158