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Prime diagnosticity in short-term repetition priming: Is primed evidence discounted, even when it reliably indicates the correct answer?

Christoph Weidemann, David E Huber, Richard M Shiffrin

Journal of Experimental Psychology: Learning, Memory, and Cognition, Volume: 34, Issue: 2, Pages: 257 - 281

Swansea University Author: Christoph Weidemann

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Abstract

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 resist...

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Published in: Journal of Experimental Psychology: Learning, Memory, and Cognition
ISSN: 1939-1285 0278-7393
Published: 2008
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa6928
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Abstract: 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.
College: Faculty of Medicine, Health and Life Sciences
Issue: 2
Start Page: 257
End Page: 281