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Science 12 March 1982:
Vol. 215. no. 4538, pp. 1413 - 1415
DOI: 10.1126/science.7063853
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Articles

Science, Vol 215, Issue 4538, 1413-1415
Copyright © 1982 by American Association for the Advancement of Science

articles

Onset and offset of brain events as indices of mental chronometry

B Renault, R Ragot, N Lesevre, and A Remond

Analysis of single-trial electroencephalogram waveforms in a reaction time task demonstrated that the onset and offset values of event-related potentials can be used as indices of the duration of information processing. Two negative waves have been identified which peak at different times in different regions of the scalp, with the second overlapping the last part of the first. These waves are related in different ways to the duration of perceptual processing.


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