ERIC Number: EJ787724
Record Type: Journal
Publication Date: 2008-Mar
Reference Count: 0
Prime Diagnosticity in Short-Term Repetition Priming: Is Primed Evidence Discounted, Even when It Reliably Indicates the Correct Answer?
Weidemann, Christoph T.; Huber, David E.; Shiffrin, Richard M.
Journal of Experimental Psychology: Learning, Memory, and Cognition, v34 n2 p257-281 Mar 2008
The authors conducted 4 repetition priming experiments that manipulated prime duration and prime diagnosticity in a visual forced-choice perceptual identification task. The strength and direction of prime diagnosticity produced marked effects on identification accuracy, but those effects were resistant to subsequent changes of diagnosticity. Participants learned to associate different diagnosticities with primes of different durations but not with primes presented in different colors. Regardless of prime diagnosticity, preference for a primed alternative covaried negatively with prime duration, suggesting that even for diagnostic primes, evidence discounting remains an important factor. A computational model, with the assumption that adaptation to the statistics of the experiment modulates the level of evidence discounting, accounted for these results.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A