http://www.cnr.it/ontology/cnr/individuo/prodotto/ID284761

Male Roman high and low avoidance rats show different patterns of copulatory behaviour: Comparison with Sprague Dawley rats (Articolo in rivista)

Type

Prodotto della ricerca (Classe)
Articolo in rivista (Classe)

Label

Male Roman high and low avoidance rats show different patterns of copulatory behaviour: Comparison with Sprague Dawley rats (Articolo in rivista) (literal)

Anno

2014-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

10.1016/j.physbeh.2014.01.002 (literal)

Alternative label

Sanna F.; Corda M.G.; Melis M.R.; Piludu M.A.; Giorgi O.; Argiolas A. (2014)
Male Roman high and low avoidance rats show different patterns of copulatory behaviour: Comparison with Sprague Dawley rats
in Physiology & behavior
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Sanna F.; Corda M.G.; Melis M.R.; Piludu M.A.; Giorgi O.; Argiolas A. (literal)

Pagina inizio

27 (literal)

Pagina fine

36 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

http://www.scopus.com/inward/record.url?eid=2-s2.0-84893654174&partnerID=q2rCbXpz (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

127 (literal)

Rivista

Physiology & behavior (Rivista)

Note

Scopu (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

Department of Life and Environmental Sciences, Section of Pharmaceutical, Pharmacological and Nutraceutical Sciences, University of Cagliari, 09124 Cagliari, Italy; Department of Biomedical Sciences, Neuroscience and Clinical Pharmacology Section, University of Cagliari, 09042 Monserrato, Italy; Centre of Excellence for the Neurobiology of Addictions, University of Cagliari, 09042 Monserrato, Italy; Institute of Neuroscience, National Research Council, Cagliari Section, 09042 Monserrato, Italy (literal)

Titolo

Male Roman high and low avoidance rats show different patterns of copulatory behaviour: Comparison with Sprague Dawley rats (literal)

Abstract

Roman high- (RHA) and low-avoidance (RLA) rats, selectively bred for, respectively, rapid vs. extremely poor acquisition of avoidant behaviour in the shuttle-box, display different coping strategies when exposed to aversive environmental conditions: RLA rats are reactive copers and show hyperemotional behaviour characterized by hypomotility and freezing, while RHA rats show a proactive coping behaviour aimed at gaining control over the stressor. RHA rats also display a robust sensation/novelty seeking profile, high baseline levels of impulsivity, and marked preference for, and intake of, natural and drug rewards. This study shows that the Roman lines also differ in sexual behaviour, a main source of natural reward. Thus, male RHA rats engaged in copulatory activity with a receptive female showing more mounts, intromissions and ejaculations in the first copulation test as compared with their RLA counterparts and Sprague Dawley rats used as an external reference strain. Such differences decreased only partially in subsequent copulation tests, with RHA rats always showing higher levels of sexual motivation and performance than RLA rats. Accordingly, analysis of copulatory parameters of five copulation tests performed at 3-day intervals confirmed that the Roman lines display different patterns of copulatory activity that persist after stabilization of copulatory behaviour by sexual experience. Finally, the weight of the testes, epididymides and seminal vesicles increased to a similar extent in both Roman lines after sexual activity. These results are discussed in terms of the relative contribution of differences in brain neurotransmission (mainly dopamine) and neuroendocrine function to the different patterns of copulatory behaviour of the Roman lines. © 2014 Elsevier Inc. (literal)

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