Affiliation: Rio de Janeiro
- Participation of the substantia nigra dopaminergic neurons in the occurrence of gastric mucosal erosionsJesus Landeira-Fernandez
Department of Psychology, University of California, Los Angeles, CA, USA
Physiol Behav 81:91-9. 2004..Taken together, these results suggest that modulation of dopaminergic levels by neurons located within the SN may play an important role for the development of gastric erosions...
- Analysis of the cold-water restraint procedure in gastric ulceration and body temperatureJ Landeira-Fernandez
Departamento de Psicologia, Pontificia Universidade Catolica do Rio de Janeiro, PUC Rio, Rua Marquês de São Vicente, 225, Rio de Janeiro, RJ 22453 900, Brazil
Physiol Behav 82:827-33. 2004..It is concluded that cold-water restraint is a useful procedure for the study of the underlying mechanisms involved in stress-induced ulceration...
- Immediate shock deficit in fear conditioning: effects of shock manipulationsJ Landeira-Fernandez
Departamento de Psicologia, Pontificia Universidade Catolico do Rio de Janeiro, Rio de Janeiro, Brazil
Behav Neurosci 120:873-9. 2006..However, immediate shock seems to sensitize subsequent context conditioning (Experiment 3). These findings suggest that the associative deficit produced by immediate shock is not related to the rat's ability to process the footshock US...
- Gastric mucosal erosion produced by NMDA microinfusions in the lateral hypothalamus: effect of selective knife cutsJ Landeira-Fernandez
Departamento de Psicologia, Pontificia Universidade Catolica do Rio de Janeiro, RJ, Brazil
Behav Brain Res 102:51-60. 1999..The results of the anterior KC suggest that the LH sends and/or receives inhibitory projections from neural structures (possibly the amygdaloid complex) anterior to the plane of the KC...
- Microinfusion of nefazodone into the basolateral nucleus of the amygdala enhances defensive behavior induced by NMDA stimulation of the inferior colliculusS Maisonnette
Laboratório de Psicologia Comparada, Universidade Estácio de Sá, Rio de Janeiro, Brazil
Physiol Behav 70:243-7. 2000..Moreover, 5-HT(2) receptors located at the basolateral nucleus of the amygdala seem to play an inhibitory role on defensive behaviors induced by inferior colliculus stimulation...
- Different patterns of freezing behavior organized in the periaqueductal gray of rats: association with different types of anxietyMarcus L Brandao
Instituto de Neurociências and Comportamento INeC, Campus USP, 14040 901 Ribeirao Preto, SP, Brazil
Behav Brain Res 188:1-13. 2008..The understanding of how the periaqueductal gray generates and elaborates different types of freezing is of relevance for our better knowledge of distinct types of anxiety such as panic disorder or generalized anxiety disorder...
- Chronic imipramine enhances 5-HT(1A) and 5-HT(2) receptors-mediated inhibition of panic-like behavior in the rat dorsal periaqueductal grayCláudia A Jacob
Laboratório de Psicologia Comparada, Universidade Estácio de Sá UNESA, Rio de Janeiro, CEP, Brazil
Pharmacol Biochem Behav 72:761-6. 2002..The results suggest that sensitization of both 5-HT(1A) and 5-HT(2) receptors within the DPAG may be involved in the beneficial effect of imipramine in panic disorder (PD)...
- Role of amygdala in conditioned and unconditioned fear generated in the periaqueductal grayLuciana C Oliveira
Laboratorio de Psicobiologia, Faculdade Filosofia, Ciencias e Letras de Ribeirao Preto, Universidade de São Paulo USP 14040 901, Ribeirao Preto, Brasil
Neuroreport 15:2281-5. 2004..These results indicate that contextual and unconditioned freezing behaviors are mediated by independent neural circuits...
- Prior electrical stimulation of dorsal periaqueductal grey matter or deep layers of the superior colliculus sensitizes rats to anxiety-like behaviors in the elevated T-maze testLeandro Pinto de Almeida
Laboratory of Comparative Psychology, School of Psychology, University Estácio de Sá, 20260 060 Rio de Janeiro, RJ, Brazil
Behav Brain Res 170:175-81. 2006..Besides, the data supports the view that prior electrical stimulation of DPAG and DLSC is selective in sensitizing rats to anxiety-like behaviors, but not to panic-like behaviors in the elevated T-maze test...