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Titolo:
BOTH PRETRAINING AND POSTTRAINING EXCITOTOXIC LESIONS OF THE BASOLATERAL AMYGDALA ABOLISH THE EXPRESSION OF OLFACTORY AND CONTEXTUAL FEAR CONDITIONING
Autore:
COUSENS G; OTTO T;
Indirizzi:
RUTGERS STATE UNIV,DEPT PSYCHOL,PROGRAM BIOPSYCHOL & BEHAV NEUROSCI NEW BRUNSWICK NJ 08903 RUTGERS STATE UNIV,DEPT PSYCHOL,PROGRAM BIOPSYCHOL & BEHAV NEUROSCI NEW BRUNSWICK NJ 08903
Titolo Testata:
Behavioral neuroscience
fascicolo: 5, volume: 112, anno: 1998,
pagine: 1092 - 1103
SICI:
0735-7044(1998)112:5<1092:BPAPEL>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
STIMULUS REWARD ASSOCIATIONS; POTENTIATED STARTLE; BLOCKS ACQUISITION; TEMPORAL GRADIENT; VENTRAL STRIATUM; LATERAL NUCLEUS; RAT; CORTEX; CONNECTIONS; PROJECTIONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
47
Recensione:
Indirizzi per estratti:
Citazione:
G. Cousens e T. Otto, "BOTH PRETRAINING AND POSTTRAINING EXCITOTOXIC LESIONS OF THE BASOLATERAL AMYGDALA ABOLISH THE EXPRESSION OF OLFACTORY AND CONTEXTUAL FEAR CONDITIONING", Behavioral neuroscience, 112(5), 1998, pp. 1092-1103

Abstract

The present study examined whether the basolateral amygdaloid complex(BLA) participates in the expression of fear conditioned to both an olfactory conditioned stimulus (CS) and the training context, In Experiment 1, pretraining excitotoxic lesions of the BLA abolished immediatepostshock freezing, conditioned freezing to an olfactory CS, and conditioned freezing to the training context. Control experiments indicated that lesioned and sham-lesioned subjects did not differ in locomotoractivity or in acquisition of a successive-cue odor discrimination task, suggesting that deficits in freezing behavior exhibited by BLA subjects were not due to an impairment in primary aspects of olfaction orto a general enhancement of locomotor activity. In Experiment 2, excitotoxic lesions of the BLA produced either 1 day or 15 days after olfactory fear conditioning abolished both odor-elicited and contextual freezing. Collectively, these data support the notion that the BLA participates in an enduring manner in the expression of conditioned freezing behavior elicited by both olfactory and contextual stimuli.

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Documento generato il 27/10/20 alle ore 09:50:03