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L-Allylglycine dissociates the neural substrates of fear in the periaqueductal gray of rats
(PERGAMON-ELSEVIER SCIENCE LTD, 2010)
The dorsal (dPAG) and ventral (vPAG) regions of the periaqueductal gray are well known to contain the neural substrates of fear and anxiety. Chemical or electrical stimulation of the dPAG induces freezing, followed by a ...
Dorsal raphe nucleus regulation of a panic-like defensive behavior evoked by chemical stimulation of the rat dorsal periaqueductal gray matter
(ELSEVIER SCIENCE BV, 2010)
Electrical or chemical stimulation of the dorsal periaqueductal gray matter (DPAG) evokes escape, a defensive behavior that has been related to panic attacks. Injection of 5-HT(1A) or 5-HT(2A) receptor agonists into this ...
Involvement of dorsal raphe nucleus and dorsal periaqueductal gray 5-HT receptors in the modulation of mouse defensive behaviors
(ELSEVIER SCIENCE BV, 2011)
Previous findings point to the involvement of the dorsal raphe nucleus (DRN) and dorsal periaqueductal gray (dPAG) serotonergic receptors in the mediation of defensive responses that are associated with specific subtypes ...
Cardiovascular effects of acetylcholine microinjection into the ventrolateral and dorsal periaqueductal gray of rats
(ELSEVIER SCIENCE BV, 2011)
In the present study, we describe the cardiovascular effects of local acetylcholine (Ach) microinjection into both the ventrolateral (vlPAG) and dorsal (dPAG) periaqueductal gray areas of anesthetized rats and the possible ...
The lateral habenula regulates defensive behaviors through changes in 5-HT-mediated neurotransmission in the dorsal periaqueductal gray matter
(ELSEVIER IRELAND LTD, 2010)
Chemical stimulation of the lateral nucleus of the habenula (LHb), an area implicated in the regulation of serotonergic activity in raphe nuclei, affects the acquisition of inhibitory avoidance and escape expression of ...
New perspective on the pathophysiology of panic: merging serotonin and opioids in the periaqueductal gray
(Associação Brasileira de Divulgação Científica, 2012)
Panic disorder patients are vulnerable to recurrent panic attacks. Two neurochemical hypotheses have been proposed to explain this susceptibility. The first assumes that panic patients have deficient serotonergic inhibition ...
Physical environment modulates the behavioral responses induced by chemical stimulation of dorsal periaqueductal gray in mice
(Elsevier B.V., 2006-09-01)
In order to investigate the relationship between behaviors elicited by chemical stimulation of the dorsal periaqueductal gray (dorsal PAG) and spontaneous defensive behaviors to a predator, the excitatory amino acid ...
Physical environment modulates the behavioral responses induced by chemical stimulation of dorsal periaqueductal gray in mice
(Elsevier B.V., 2006-09-01)
In order to investigate the relationship between behaviors elicited by chemical stimulation of the dorsal periaqueductal gray (dorsal PAG) and spontaneous defensive behaviors to a predator, the excitatory amino acid ...
Dorsal periaqueductal gray plays a role in respiratory response to CO2
(Federation Amer Soc Exp Biol, 2011-04-01)