Criterion Setting and the Dynamics of Recognition Memory
Version of Record online: 17 JAN 2012
Copyright © 2012 Cognitive Science Society, Inc.
Topics in Cognitive Science
Volume 4, Issue 1, pages 135–150, January 2012
How to Cite
Cox, G. E. and Shiffrin, R. M. (2012), Criterion Setting and the Dynamics of Recognition Memory. Topics in Cognitive Science, 4: 135–150. doi: 10.1111/j.1756-8765.2011.01177.x
- Issue online: 17 JAN 2012
- Version of Record online: 17 JAN 2012
- Received 18 September 2011; received in revised form 7 November 2011; accepted 8 November 2011
- Recognition memory;
- Episodic memory;
- Memory models;
- Reaction time
Models of recognition memory have traditionally struggled with the puzzle of criterion setting, a problem that is particularly acute in cases in which items for study and test are of widely varying types, with differing degrees of baseline familiarity and experience (e.g., words vs. random dot patterns). We present a dynamic model of the recognition process that addresses the criterion setting problem and produces joint predictions for choice and reaction time. In this model, recognition decisions are based not on the absolute value of familiarity, but on how familiarity changes over time as features are sampled from the test item. Decisions are the outcome of a race between two parallel accumulators: one that accumulates positive changes in familiarity (leading to an ‘‘old’’ decision) and another that accumulates negative changes (leading to a ‘‘new’’ decision). Simulations with this model make realistic predictions for recognition performance and latency regardless of the baseline familiarity of study and test items.