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Titolo:
The cardiovascular and behavioral response to cat odor in rats: unconditioned and conditioned effects
Autore:
Dielenberg, RA; Carrive, P; McGregor, IS;
Indirizzi:
Univ Sydney, Dept Psychol, Sydney, NSW 2006, Australia Univ Sydney SydneyNSW Australia 2006 sychol, Sydney, NSW 2006, Australia Univ New S Wales, Dept Anat, Sydney, NSW 2052, Australia Univ New S WalesSydney NSW Australia 2052 t, Sydney, NSW 2052, Australia
Titolo Testata:
BRAIN RESEARCH
fascicolo: 1-2, volume: 897, anno: 2001,
pagine: 228 - 237
SICI:
0006-8993(20010406)897:1-2<228:TCABRT>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANTIPREDATOR DEFENSIVE BEHAVIOR; PREDATOR ODOR; LATENT INHIBITION; EXPOSURE; ANXIETY; HABITUATION; MIDAZOLAM; CONTEXT; FEAR; TMT;
Keywords:
blood pressure; predator odor; conditioned fear; defensive behavior; heart rate; anxiety;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: McGregor, IS Univ Sydney, Dept Psychol, A19, Sydney, NSW 2006, Australia Univ Sydney A19 Sydney NSW Australia 2006 NSW 2006, Australia
Citazione:
R.A. Dielenberg et al., "The cardiovascular and behavioral response to cat odor in rats: unconditioned and conditioned effects", BRAIN RES, 897(1-2), 2001, pp. 228-237

Abstract

Cardiovascular and behavioral responses were recorded in rats during exposure to cat odor. Rats were habituated to an open rectangular arena that contained a small enclosed wooden box in which they could hide. On day 1 of the experiment, after 30 min in the apparatus, rats were presented with a piece of fabric collar for 60 min. On day 2. rats were presented with an identical piece of fabric collar, except that it had been worn by a cat and therefore exuded cat odor. On day 3, rats were again presented with an unworn cat collar, to determine any conditioned responses to the environment or stimulus (collar) previously associated with cat odor. Results showed significantly increased blood pressure and decreased activity during exposure to cat odor as well as avoidance of the odor stimulus and an increase in vigilance and risk-assessment measures. No significant change in heart rate was found during cat odor exposure. On day 3, a transient increase in blood pressure was seen as well as reduced activity and a range of defensive behaviors. This suggests some conditioning of fear to a context in which cat odor had previously been experienced. Heart rate was also significantly decreased on day 3. A transient rise in blood pressure was also seen when the unworn cat collar was placed into the apparatus on day 3, suggesting a conditionedresponse to a stimulus that has been previously associated with cat odor. This study demonstrates that a natural stressful stimulus can induce both unconditioned and conditioned autonomic and behavioral responses. (C) 2001 Published by Elsevier Science B.V.

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Documento generato il 22/01/20 alle ore 06:53:49