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Titolo:
EXTINCTION OF WITHIN-EVENT LEARNING IS CONTEXTUALLY CONTROLLED AND SUBJECT TO RENEWAL
Autore:
WESTBROOK RF; DUFFIELD TQ; GOOD AJ; HALLIGAN S; SETH AK; SWINBOURNE AL;
Indirizzi:
UNIV NEW S WALES,SCH PSYCHOL SYDNEY NSW 2052 AUSTRALIA
Titolo Testata:
The Quarterly journal of experimental psychology. B, Comparative andphysiological psychology
fascicolo: 4, volume: 48, anno: 1995,
pagine: 357 - 375
SICI:
0272-4995(1995)48:4<357:EOWLIC>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
COMPOUND FLAVOR ASSOCIATIONS; STIMULI; MODEL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
20
Recensione:
Indirizzi per estratti:
Citazione:
R.F. Westbrook et al., "EXTINCTION OF WITHIN-EVENT LEARNING IS CONTEXTUALLY CONTROLLED AND SUBJECT TO RENEWAL", The Quarterly journal of experimental psychology. B, Comparative andphysiological psychology, 48(4), 1995, pp. 357-375

Abstract

Five experiments examined within-event learning in rats by inducing an appetite for one of the elements (salt) of a compound stimulus and assessing preference for the other element (almond). Almond preference was conditional upon (1) the almond flavour having been presented in compound with the salt, and (2) the assessment being conducted when therats were out of sodium balance (Experiment 1). Presentations of the compound in one environment (A) and of the salt and almond elements ina second environment (B) resulted in greater almond preference when rats were tested in A than in B (Experiment 2). Almond preference was reduced when separate presentations of the compound and almond (Experiment 3) or of the compound and salt (Experiment 4) occurred in the sameenvironments but not when these presentations occurred in different environments. Rats exposed to the compound in A and then extinguished to the elements in either A or B showed a reduced almond preference when tested in the extinction environment, but not when tested in the other environment (Experiment 5). Thus, extinction of within-event learning is context-specific and subject to renewal. The results were interpreted in terms of an associative model whereby separate presentations of the elements result in a symmetrical inhibitory link which is contextually gated (Bouton, 1993).

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Documento generato il 05/12/20 alle ore 08:12:36