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Science 28 July 1972:
Vol. 177. no. 4046, pp. 362 - 364
DOI: 10.1126/science.177.4046.362
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Articles

Evoked Potential Correlates of Response Criterion in Auditory Signal Detection

Dina Doré Paul 1 and Samuel Sutton 1

1 Biometrics Research, New York State Department of Mental Hygiene, 722 West 168 Street, New York 10032, and Department of Psychiatry, Columbia University, New York 10027

The amplitude of a late positive component of the average evoked potential recorded from the human scalp varied systematically as a function of the observer's response criterion as defined within the context of signal detection theory. With signal intensity invariant, the P3, component of the evoked potential increased monotonically with increasing strictness of the criterion. The results are viewed as supporting the signal detection theory approach to the analysis of discrimination behavior as well as providing further evidence of the sensitivity of P3 to the manipulation of psychological variables.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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Science. ISSN 0036-8075 (print), 1095-9203 (online)