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ERIC Number: EJ890749
Record Type: Journal
Publication Date: 2010-Jul
Pages: 12
Abstractor: As Provided
Reference Count: 28
ISSN: ISSN-0022-5002
Psychopysics of Remembering: To Bias or Not to Bias?
White, K. Geoffrey; Wixted, John T.
Journal of the Experimental Analysis of Behavior, v94 n1 p83-94 Jul 2010
Delayed matching to sample is typically a two-alternative forced-choice procedure with two sample stimuli. In this task the effects of varying the probability of reinforcers for correct choices and the resulting receiver operating characteristic are symmetrical. A version of the task where a sample is present on some trials and absent on others is analogous to a yes/no recognition task. We describe data from two experiments where an asymmetry in performance in the yes/no task could be attributed to a change in response bias with increasing retention-interval duration from a matching-law perspective, but not from a signal-detection perspective. Both approaches make explicit assumptions about response bias. The apparent inconsistency between the two approaches to the treatment of response bias is resolved in terms of a model proposed by K. G. White and J. T. Wixted (1999) which predicts asymmetrical matching-law functions and receiver operating characteristics without making any assumptions about response bias. (Contains 9 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A