Evoked-Potential Correlates of Stimulus Uncertainty
- 26 November 1965
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 150 (3700) , 1187-1188
- https://doi.org/10.1126/science.150.3700.1187
Abstract
The average evoked-potential waveforms to sound and light stimuli recorded from scalp in awake human subjects show differences as a function of the subject's degree of uncertainty with respect to the sensory modality of the stimulus to be presented. Differences are also found in the evoked potential as a function of whether or not the sensory modality of the stimulus was anticipated correctly. The major waveform alteration is in the amplitude of a positive-going component which reaches peak amplitude at about 300 milliseconds.This publication has 5 references indexed in Scilit:
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- Enhancement of Evoked Cortical Potentials in Humans Related to a Task Requiring a DecisionScience, 1964
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- Contingent Negative Variation : An Electric Sign of Sensori-Motor Association and Expectancy in the Human BrainNature, 1964