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Titolo:
Overshadowing of explicitly unpaired conditioned inhibition is disrupted by preexposure to the overshadowed inhibitor
Autore:
Blaisdell, AP; Savastano, HI; Miller, RR;
Indirizzi:
SUNY Binghamton, Dept Psychol, Binghamton, NY 13902 USA SUNY Binghamton Binghamton NY USA 13902 Psychol, Binghamton, NY 13902 USA
Titolo Testata:
ANIMAL LEARNING & BEHAVIOR
fascicolo: 3, volume: 27, anno: 1999,
pagine: 346 - 357
SICI:
0090-4996(199908)27:3<346:OOEUCI>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
LATENT INHIBITION; COMPARATOR HYPOTHESIS; PERFORMANCE DEFICIT; CAUSALITY JUDGMENTS; CONTEXTUAL CONTROL; 2-TEST STRATEGY; STIMULUS; ASSOCIATIONS; EXTINCTION; COMPOUND;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
43
Recensione:
Indirizzi per estratti:
Indirizzo: Miller, RR SUNY Binghamton, Dept Psychol, Binghamton, NY 13902 USA SUNY Binghamton Binghamton NY USA 13902 nghamton, NY 13902 USA
Citazione:
A.P. Blaisdell et al., "Overshadowing of explicitly unpaired conditioned inhibition is disrupted by preexposure to the overshadowed inhibitor", ANIM LEAR B, 27(3), 1999, pp. 346-357

Abstract

In two conditioned lick-suppression experiments with rats, the interactionof preexposure to a target stimulus and subsequent overshadowing of conditioned inhibition treatment was examined. Blaisdell, Bristol, Gunther, and Miller (1998) have demonstrated that stimulus preexposure and overshadowing counteract each other in their effects on Pavlovian excitation, producing strong excitatory responding to the target stimulus. In the present experiments, a conditioned inhibition analogue of tills effect was examined. Overshadowing of conditioned inhibition (i.e., attenuation of inhibitory control of behavior by the target stimulus) was demonstrated when a more salient stimulus was compounded with the target inhibitor during conditioned inhibition training. However, the overshadowing deficit was attenuated by preexposing the target stimulus prior to overshadowing treatment. To account for this phenomenon, we contrast the comparator hypothesis (Miller & Matzel, 1988)with contemporary models that focus on associative acquisition.

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Documento generato il 06/07/20 alle ore 08:52:01