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Titolo:
Enhanced Fos expression within the primary olfactory and limbic pathways induced by an aversive conditioned odor stimulus
Autore:
Funk, D; Amir, S;
Indirizzi:
Concordia Univ, Dept Psychol, Ctr Studies Behav Neurobiol, Montreal, PQ H3G 1M8, Canada Concordia Univ Montreal PQ Canada H3G 1M8 l, Montreal, PQ H3G 1M8, Canada
Titolo Testata:
NEUROSCIENCE
fascicolo: 3, volume: 98, anno: 2000,
pagine: 403 - 406
SICI:
0306-4522(2000)98:3<403:EFEWTP>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANTERIOR PERIRHINAL CORTEX; GENE C-FOS; CATECHOLAMINE INNERVATION; LATENT INHIBITION; LOCUS-COERULEUS; BASAL FOREBRAIN; NERVE INPUT; FEAR; RAT; AMYGDALA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Amir, S Concordia Univ, Dept Psychol, Ctr Studies Behav Neurobiol, 1455 Maisonneuve Blvd W, Montreal, PQ H3G 1M8, Canada Concordia Univ 1455 Maisonneuve Blvd W Montreal PQ Canada H3G 1M8
Citazione:
D. Funk e S. Amir, "Enhanced Fos expression within the primary olfactory and limbic pathways induced by an aversive conditioned odor stimulus", NEUROSCIENC, 98(3), 2000, pp. 403-406

Abstract

A central question in olfactory learning is how animals become tuned to odor stimuli that gain significance through conditioning. A leading view is that tuning to conditioned odor stimuli involves functional modifications within the primary olfactory pathways, themselves.(7) Here we studied this idea further by investigating responses within the olfactory system to an odor that had previously been paired with footshock in classical fear-conditioning trials in adult rats. Using the transcription factor Fos as a marker of odor-induced neuronal activation,(1,14) we found that in rats that had received forward pairings of odor and footshock during training, presentationof the conditioned odor stimulus, alone, produced an enhanced increase in levels of Fos in the main and accessory olfactory bulbs and anterior olfactory nucleus compared with that found in animals that had received backward presentations of the stimuli or of odor alone. These results demonstrate that Fos responses to an odor within the primary olfactory pathways can be modified through aversive conditioning, and are consistent with other evidence that olfactory conditioning can lead to functional changes within these pathways,(7) (C) 2000 IBRO. Published by Elsevier Science Ltd. All rights reserved.

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Documento generato il 26/01/20 alle ore 01:09:05