Animal Behavior Defensive
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Mapeamento anátomo-funcional dos sítios neurais envolvidos nas respostas observadas durante exposição ao ambiente contextual de uma derrota social. / Anatomic and functional mapping of the neural sites involved in the observed responses during the exposition of the environment of a social defeat.
We investigated the neural systems involved in the contextual defense to a social defeat. We established a protocol to observe contextual defensive responses in animals previously defeated by an aggressive conspecific: animals were kept ten days living in a apparatus composed by two cages (room and resident cages). On the 11th day animals were exposed to an
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/08/2012
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2. ROLE OF DORSAL AND VENTRAL HIPPOCAMPUS ON CONDITIONED AND UNCONDITIONED FEAR ELICITED BY DORSAL PERIAQUEDUCTAL GREY MATTER ELECTRICAL STIMULATION IN RATS / PARTICIPAÇÃO DO HIPOCAMPO DORSAL E VENTRAL NAS REAÇÕES DE DEFESA PRODUZIDAS PELO CONDICIONAMENTO CONTEXTUAL DE MEDO E PELA ESTIMULAÇÃO ELÉTRICA DA MATÉRIA CINZENTA PERIAQUEDUTAL DORSAL
This study investigates the role of the hippocampus in both unconditioned and conditioned defense behavior by examining the effects of pre-training electrolytic lesions to the dorsal and ventral hippocampus in male rats exposed to two types of threat stimuli: electrical stimulation of the DPAG and footshock. Our results indicate that ventral and dorsal lesio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/03/2012
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3. Effects of contextual fear conditioning and pentylenetetrazol on panic-like reactions induced by dorsal periaqueductal gray stimulation with N-methyl-D-aspartate
Electrical or chemical stimulation of the dorsal periaqueductal gray (DPAG) has been accepted as an animal model of panic attacks. This study investigates the influence of anticipatory anxiety in the occurrence of panic-like behavior induced by N-methyl-D-aspartate (NMDA) microinjection into the DPAG of rats. Behavioral (i.e., contextual fear conditioning) a
Psychology & Neuroscience. Publicado em: 2010-06
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4. Cholinergic-opioidergic interaction in the central amygdala induces antinociception in the guinea pig
Several studies have demonstrated the involvement of the central nucleus of the amygdala (CEA) in the modulation of defensive behavior and in antinociceptive regulation. In a previous study, we demonstrated the existence of a cholinergic-opioidergic interaction in the CEA, modulating the defensive response of tonic immobility in guinea pigs. In the present s
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-10
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5. Ecologia e comportamento de formigas tecelÃs (Camponotus) no cerrado brasileiro
The form of nests construction in eusocial insects reveals important steps of its evolutionary history. The weaver ants nests are built starting from the silk that is produced by their own larvas. This form of nests construction is one of the most remarkable instances of social cooperation in animals. The nests construction behavior in the weavers limited to
Publicado em: 2002