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	Provedor de dados BJMBR (1) Autor Ballester,G. (1) Fonoff,E.T. (1) Silva,C.P.C. (1) Timo-Iaria,C. (1) Palavra-chave Dorsal raphe nucleus (1) Hippocampus (1) Instantaneous frequency (1) Neocortex (1) Serotonin (1) Theta rhythm (1) Mais... Tipo do documento Info:eu-repo/semantics/other (1) Ano 1999 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Electro-oscillographic correlation between dorsal raphe nucleus, neocortex and hippocampus during wakefulness before and after serotoninergic inactivation BJMBR Fonoff,E.T.; Silva,C.P.C.; Ballester,G.; Timo-Iaria,C.. Theta rhythm in many brain structures characterizes wakefulness and desynchronized sleep in most subprimate mammalian brains. In close relation to behaviors, theta frequency and voltage undergo a fine modulation which may involve mobilization of dorsal raphe nucleus efferent pathways. In the present study we analyzed frequency modulation (through instantaneous frequency variation) of theta waves occurring in three cortical areas, in hippocampal CA1 and in the dorsal raphe nucleus of Wistar rats during normal wakefulness and after injection of the 5-HT1a receptor agonist 8-OH-DPAT into the dorsal raphe. We demonstrated that in attentive states the variation of theta frequency among the above structures is highly congruent, whereas after 8-OH-DPAT injection,... Tipo: Info:eu-repo/semantics/other Palavras-chave: Theta rhythm; Serotonin; Dorsal raphe nucleus; Neocortex; Hippocampus; Instantaneous frequency. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000400015 Registros recuperados: 1 Primeira ... 1 ... Última

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