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The dorsal raphe nucleus exerts opposed control on generalized anxiety and panic-related defensive responses in rats
(Elsevier B.V., 2003-06-16)
It has been proposed that the ascending dorsal raphe (DR)-serotonergic (5-HT) pathway facilitates conditioned avoidance responses to potential or distal threat, while the DR-periventricular 5-HT pathway inhibits unconditioned ...
Panic disorder cases in Japanese-Brazilians in Japan: Their ethnic and cultural confusion
(Blackwell Science Asia, 2001-04-01)
The comparatively high salaries made in Japan are attractive to many Japanese-Brazilians. the number of individuals from this ethnic group being treated in Japanese mental hospitals has increased. We hypothesized that ...
5-HT2C receptor regulation of defensive responses in the rat dorsal periaqueductal gray
(PERGAMON-ELSEVIER SCIENCE LTD, 2011)
Activation of 5-HT2C receptors in limbic structures such as the amygdala and hippocampus increases anxiety. Indirect evidence obtained with non-selective 5-HT2C-interacting drugs suggests that the same may occur in the ...
Serotonergic neurons in the median raphe nucleus regulate inhibitory avoidance but not escape behavior in the rat elevated T-maze test of anxiety
(Springer, 2005-06-01)
Rationale: A wealth of evidence supports the involvement of the serotonergic neurons of the median raphe nucleus (MRN) in anxiety. However, it is presently unclear whether serotonergic pathways arising from this nucleus ...
Serotonergic neurons in the median raphe nucleus regulate inhibitory avoidance but not escape behavior in the rat elevated T-maze test of anxiety
(Springer, 2005-06-01)
Rationale: A wealth of evidence supports the involvement of the serotonergic neurons of the median raphe nucleus (MRN) in anxiety. However, it is presently unclear whether serotonergic pathways arising from this nucleus ...
Stimulation of 5-HT1A or 5-HT2A receptors in the ventrolateral periaqueductal gray causes anxiolytic-, but not panicolytic-like effect in rats
(ELSEVIER SCIENCE BV, 2009)
Evidences from studies using electrical or chemical stimulation of the midbrain periaqueductal gray (PAG) suggest that whereas the dorsal PAG is critical for the regulation of panic-related defensive behaviors, the ...
The brain decade in debate: II. Panic or anxiety? From animal models to a neurobiological basis
(Associação Brasileira de Divulgação Científica, 2001-02-01)
This article is a transcription of an electronic symposium sponsored by the Brazilian Society of Neuroscience and Behavior (SBNeC). Invited researchers from the European Union, North America and Brazil discussed two issues ...
Dorsomedial hypothalamus CRF type 1 receptors selectively modulate inhibitory avoidance responses in the elevated T-maze
(Elsevier B.V., 2014-09-01)
Corticotropin-releasing factor (CRF) plays a critical role in the mediation of physiological and behavioral responses to stressors. in the present study, we investigated the role played by the CRF system within the dorsomedial ...