EFFECTS of STRESS ON DRUG-INDUCED YAWNING - CONSTANT VS INTERMITTENT STRESS

EFFECTS of STRESS ON DRUG-INDUCED YAWNING - CONSTANT VS INTERMITTENT STRESS

Autor Tufik, S. Google Scholar
Nathan, C. D. Google Scholar
Neumann, B. Google Scholar
Hipolide, D. C. Google Scholar
Lobo, L. L. Google Scholar
Demedeiros, R. Google Scholar
Troncone, LRP Google Scholar
Braz, S. Google Scholar
Suchecki, D. Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Resumo Experiment 1 tested whether chronic exposure to immobilization, foot shock or forced swimming would result in suppression of apomorphine, pilocarpine-, and physostigmine-induced yawning. Immobilization caused suppression of yawning, whereas foot shock and swimming resulted in increased number of yawns. Since interstressor interval was long in the two latter stressors, animals could have recovered and the increase in yawning could be due to the last (acute) exposure to stress. in Experiment 2 we recorded the number of yawns induced by pilocarpine in animals exposed to 1 h of swimming or foot shock. No differences between control and acutely stressed animals were detected. These results suggest that yawning is differently altered by constant and intermittent stressors (i.e., diminished by constant and increased by intermittent stress).
Palavra-chave STRESS
YAWNING BEHAVIOR
DOPAMINERGIC SYSTEM
CHOLINERGIC SYSTEM
RAT
Idioma Inglês
Data de publicação 1995-07-01
Publicado em Physiology & Behavior. Oxford: Pergamon-Elsevier B.V., v. 58, n. 1, p. 181-184, 1995.
ISSN 0031-9384 (Sherpa/Romeo, fator de impacto)
Publicador Elsevier B.V.
Extensão 181-184
Fonte http://dx.doi.org/10.1016/0031-9384(95)00043-I
Direito de acesso Acesso restrito
Tipo Artigo
Web of Science WOS:A1995RB50500027
Endereço permanente http://repositorio.unifesp.br/handle/11600/25509

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