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Electro‐cortical and Cardiac Rate Correlates of Psychophysical Judgment
Author(s) -
Lang Peter J.,
Gatchel Robert J.,
Simons Robert F.
Publication year - 1975
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/j.1469-8986.1975.tb00066.x
Subject(s) - psychology , anticipation (artificial intelligence) , artifact (error) , audiology , cognition , cognitive psychology , tone (literature) , contingent negative variation , heart rate , electroencephalography , eye movement , neuroscience , medicine , art , literature , artificial intelligence , computer science , blood pressure , radiology
Nine undergraduate volunteers participated in a frequency discrimination task. They were asked to rank five different pure tones, presented individually, and report their judgment several seconds after each tone terminated. Tones generally ranked correctly in frequency yielded larger fast‐cortical potential* and evoked heart rate respoases. Stimuli which occasioned frequent errors prompted a specific, negative, slow cortical wave, which could be distinguished both from eye movement artifact, and the slow wave changes associated with orienting and anticipation. The physiological data were analyzed in ternvs ot'two conceptions of the cognitive processing involved in psychophysical judgments.