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Titolo:
Psychophysics of remembering
Autore:
White, KG; Wixted, JT;
Indirizzi:
Univ Otago, Dept Psychol, Dunedin, New Zealand Univ Otago Dunedin New Zealand tago, Dept Psychol, Dunedin, New Zealand Univ Calif San Diego, San Diego, CA 92103 USA Univ Calif San Diego San Diego CA USA 92103 iego, San Diego, CA 92103 USA
Titolo Testata:
JOURNAL OF THE EXPERIMENTAL ANALYSIS OF BEHAVIOR
fascicolo: 1, volume: 71, anno: 1999,
pagine: 91 - 113
SICI:
0022-5002(199901)71:1<91:POR>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
SIGNAL-DETECTION-THEORY; TO-SAMPLE PERFORMANCE; RECOGNITION MEMORY; CONDITIONAL DISCRIMINATIONS; STIMULUS DISCRIMINABILITY; MATCHING LAW; BIAS; CONSEQUENCES; SENSITIVITY; MODELS;
Keywords:
remembering; conditional discrimination; forgetting functions; discriminability; reinforcer probability; delayed matching to sample; pigeon;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
53
Recensione:
Indirizzi per estratti:
Indirizzo: White, KG Univ Otago, Dept Psychol, Dunedin, New Zealand Univ Otago Dunedin New Zealand Psychol, Dunedin, New Zealand
Citazione:
K.G. White e J.T. Wixted, "Psychophysics of remembering", J EXP AN BE, 71(1), 1999, pp. 91-113

Abstract

We present a new model of remembering in the context of conditional discrimination. For procedures such as delayed matching to sample, the effect of the sample stimuli at the time of remembering is represented by a pair of Thurstonian (normal) distributions of effective stimulus values. The critical assumption of the model is that, based on prior experience, each effective stimulus Value is associated with a ratio of reinforcers obtained for previous correct choices of the comparison stimuli. That ratio determines the choice that is made on the basis of the matching law. The standard deviations of the distributions are assumed to increase with increasing retention-interval duration, and the distance between their means is assumed to be a function of other factors that influence overall difficulty of the discrimination. It is a behavioral model in that choice is determined by its reinforcement history. The model predicts that the biasing effects of the reinforcer differential increase with decreasing discriminability and with increasing retention-interval duration. Data from several conditions using a delayed matching-to-sample procedure with pigeons support the predictions.

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Documento generato il 07/07/20 alle ore 16:44:50