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Logistic analysis of the defense reaction induced by electrical stimulation of the rat mesencephalic tectum.
Schenberg, L C; Costa, M B; Borges, P C; Castro, M F.
Afiliación
  • Schenberg LC; Pos-Graduação em Ciencias Fisiologicas, Universidade Federal do Espirito Santo, Vitoria, Brazil.
Neurosci Biobehav Rev ; 14(4): 473-9, 1990.
Article en En | MEDLINE | ID: mdl-2287484
Subliminal and threshold functions of behavioral output to electrical stimulation of the rat mesencephalic tectum were fitted using the logistic model. The results suggest the existence of isotopic albeit anisotropic freezing and flight mechanisms in the dorsal periaqueductal gray and deep layers of the superior colliculus. Moreover, the marked parallelism of immobility and running threshold functions indicates the probable coupling of these mechanisms through a kind of negative feedback. Finally, the good fitting to the model suggests that the behavioral output to electrical stimulation of these areas follows a logistic function of the logarithm of the stimulus intensity.
Asunto(s)
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Mesencéfalo / Mecanismos de Defensa / Agresión Límite: Animals / Humans Idioma: En Revista: Neurosci Biobehav Rev Año: 1990 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Estados Unidos
Buscar en Google
Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Mesencéfalo / Mecanismos de Defensa / Agresión Límite: Animals / Humans Idioma: En Revista: Neurosci Biobehav Rev Año: 1990 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Estados Unidos