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Titolo:
STIMULUS COMPETITION IN THE ABSENCE OF COMPOUND CONDITIONING
Autore:
MATUTE H; PINENO O;
Indirizzi:
UNIV DEUSTO,DEPT PSICOL,APARTADO 1 BILBAO 48080 SPAIN
Titolo Testata:
Animal learning & behavior
fascicolo: 1, volume: 26, anno: 1998,
pagine: 3 - 14
SICI:
0090-4996(1998)26:1<3:SCITAO>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
CAUSALITY JUDGMENTS; BACKWARD BLOCKING; CUE COMPETITION; CONTEXT; ASSOCIATIONS; CONTINGENCY; NETWORK; MODEL; TIME;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Physical, Chemical & Earth Sciences
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
H. Matute e O. Pineno, "STIMULUS COMPETITION IN THE ABSENCE OF COMPOUND CONDITIONING", Animal learning & behavior, 26(1), 1998, pp. 3-14

Abstract

Most associative theories have assumed that stimulus competition occurs only between conditioned stimuli (CSs) that are trained in compound. The present research investigated the possibility of competition between two CSs that were individually paired to the same unconditioned stimulus (US). We used human subjects in an anticipatory suppression analogue to Pavlovian conditioning. Experiment 1 showed that X+ trainingfollowed by A+ training resulted in impaired responding to X. This did not occur when hf training preceded X+ training. Experiment 2 replicated the basic effect and showed that it did not occur when the Phase 2 training consisted of A- instead of A+ nor when the A+ pairings occurred in a second context. Experiment 3 showed that A+ pairings occurring in a second context could still produce the effect when X was tested in the context in which the Af pairings had occurred, but not when Xwas tested in a context different from that used for A+ training. Collectively, these results suggest that individually trained CSs may compete with each other when one of those CSs is more strongly activated by the test context than the other one.

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Documento generato il 04/04/20 alle ore 01:43:44