Reports

Information Delivery and the Sensory Evoked Potential

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Science  17 Mar 1967:
Vol. 155, Issue 3768, pp. 1436-1439
DOI: 10.1126/science.155.3768.1436

Abstract

The waveform of evoked responses recorded from human scalp is not determined solely by the physical eliciting stimulus, but also varies as a function of the effective information provided by the stimulus. There is a positive component whose latency is determined by the point in time at which ambiguity is reduced, and whose shape and amplitude are influenced by whether it is the presence or absence of an external event which delivers the information.

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