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The contingent negative variation in an odor labeling paradigm
Author(s) -
LORIG TYLER S.,
TURNER JAMES M.,
MATIA DOUGLAS C.,
WARRENBURG STEPHEN
Publication year - 1995
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.1469-8986.1995.tb01222.x
Subject(s) - odor , psychology , contingent negative variation , audiology , stimulus (psychology) , olfaction , olfactory system , neuroscience , cognition , cognitive psychology , medicine
Abstarct Fifteen subjects participated in an experiment designed to assess the contingent negative variation (CNV) during the labeling of odors and shapes. Odors or shapes were presented (SI) and followed 3 s later by a lexical label (A, B, or C) (S2). In 75% of the trials, the S2 was the correct label for the odor or shape. In the remaining trials, the S2 was an incorrect label. Subjects' olfactory performance was correlated with both the CNV during in the S1/S2 interval and also the P300 following the S2 stimulus. The CNV over the left frontal area was significantly larger in the olfactory phase of the experiment. CNV activity also correlated with olfactory performance such that subjects with the largest odor‐related CNVs had the best olfactory performance. Although P300 differed as a function of label matches versus mismatches, no odor‐specific effects or correlations were found.