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Direct linkKangas, Brian D.; Berry, Meredith S.; Branch, Marc N. – Journal of the Experimental Analysis of Behavior, 2011
Despite its frequent use to assess effects of environmental and pharmacological variables on short-term memory, little is known about the development of delayed matching-to-sample (DMTS) performance. This study was designed to examine the dimensions and dynamics of DMTS performance development over a long period of exposure to provide a more…
Descriptors: Short Term Memory, Stimuli, Memory, Intervals
Download full textWhite, K. Geoffrey; Brown, Glenn S. – Journal of the Experimental Analysis of Behavior, 2011
Pigeons performed a delayed matching-to-sample task in which large or small reinforcers for correct remembering were signaled during the retention interval. Accuracy was low when small reinforcers were signaled, and high when large reinforcers were signaled (the signaled magnitude effect). When the reinforcer-size cue was switched from small to…
Descriptors: Animals, Reinforcement, Accuracy, Memory
White, K. Geoffrey; Wixted, John T. – Journal of the Experimental Analysis of Behavior, 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…
Descriptors: Response Style (Tests), Psychology, Probability, Gender Differences
Wright, Anthony A. – Journal of the Experimental Analysis of Behavior, 2007
Rhesus monkeys were trained and tested in visual and auditory list-memory tasks with sequences of four travel pictures or four natural/environmental sounds followed by single test items. Acquisitions of the visual list-memory task are presented. Visual recency (last item) memory diminished with retention delay, and primacy (first item) memory…
Descriptors: Memory, Test Items, Familiarity, Inhibition
Meeter, M.; Shohamy, D.; Myers, C. E. – Journal of the Experimental Analysis of Behavior, 2009
Acquired equivalence is a paradigm in which generalization is increased between two superficially dissimilar stimuli (or antecedents) that have previously been associated with similar outcomes (or consequents). Several possible mechanisms have been proposed, including changes in stimulus representations, either in the form of added associations or…
Descriptors: Stimuli, Models, Classification, Groups
Odum, Amy L.; Shahan, Timothy A.; Nevin, John A. – Journal of the Experimental Analysis of Behavior, 2005
This experiment examined the effects of reinforcement probability on resistance to change of remembering and response rate. Pigeons responded on a two- component multiple schedule in which completion of a variable-interval 20-s schedule produced delayed matching-to-sample trials in both components. Each session included four delays (0.1 s, 2 s, 4…
Descriptors: Memory, Probability, Reinforcement, Intervals
