EEG Correlates of Cumulative Expectancy and Subjective Estimates of Alertness in a Vigilance-type Task
- 1 August 1971
- journal article
- research article
- Published by SAGE Publications in Quarterly Journal of Experimental Psychology
- Vol. 23 (3), 245-254
- https://doi.org/10.1080/14640746908401818
Abstract
Occipital EEG was monitored during a slow presentation rate vigilance task. EEG samples were taken for each of 400 task events. The EEG is correlated with increases and decreases in “expectancy” built into the task. Post-trial subjective estimates of alertness parallel the EEG changes. Reaction time to “wanted signals” does not correlate with measures of pre-signal EEG.Keywords
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