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Titolo:
Conditioning method dramatically alters the role of amygdala in taste aversion learning
Autore:
Schafe, GE; Thiele, TE; Bernstein, IL;
Indirizzi:
Univ Washington, Dept Psychol, Seattle, WA 98195 USA Univ Washington Seattle WA USA 98195 Dept Psychol, Seattle, WA 98195 USA
Titolo Testata:
LEARNING & MEMORY
fascicolo: 6, volume: 5, anno: 1998,
pagine: 481 - 492
SICI:
1072-0502(199811/12)5:6<481:CMDATR>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
C-FOS INDUCTION; INSULAR CORTEX; FOREBRAIN CONTRIBUTION; PARABRACHIAL NUCLEUS; GUSTATORY NEOCORTEX; SODIUM APPETITE; DORSAL STRIATUM; SOLITARY TRACT; MEMORY-SYSTEMS; LESIONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
37
Recensione:
Indirizzi per estratti:
Indirizzo: Schafe, GE NYU, Ctr Neural Sci, New York, NY 10003 USA NYU New York NY USA 10003 r Neural Sci, New York, NY 10003 USA
Citazione:
G.E. Schafe et al., "Conditioning method dramatically alters the role of amygdala in taste aversion learning", LEARN MEM, 5(6), 1998, pp. 481-492

Abstract

Although an important role for the amygdala in taste aversion learning hasbeen suggested by work in a number of laboratories, results have been inconsistent and interpretations varied. The present series of studies reevaluated the role of the amygdala in taste aversion learning by examining the extent to which conditioning methods, testing methods and lesioning methods, influence whether amygdala lesions dramatically affect conditioned taste aversion (CTA) learning, Results indicated that when animals are conditioned with an intraoral (I/O) taste presentation, lesions of amygdala eliminate evidence of conditioning whether animals are tested intraorally or with a two-bottle solution presentation, Dramatic effects of amygdala lesions on CTAlearning were seen whether lesions were made electrolytically or using an excitotoxin. In contrast, when animals were conditioned using bottle presentation of the taste, electrolytic lesions attenuated CTAs but did not eliminate them, and excitotoxic lesions had no effect. These results are consistent with the hypothesis that neural structures critical for CTA learning may differ depending on the extent to which the method of conditioned stimulus delivery incorporates a response component.

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Documento generato il 25/09/20 alle ore 09:56:23