Classical Aversive Conditioning
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Induction of Zenk protein expression within the nucleus taeniae of the amygdala of pigeons following tone and shock stimulation
In this study, we evaluated the expression of the Zenk protein within the nucleus taeniae of the pigeon’s amygdala (TnA) after training in a classical aversive conditioning, in order to improve our understanding of its functional role in birds. Thirty-two 18-month-old adult male pigeons (Columba livia), weighing on average 350 g, were trained under differe
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-08
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2. Variação circadiana da expressão da sintase neuronal de óxido nítrico (nNOS) no hipocampo e o condicionamento contextual aversivo em pombos (Columba livia) / Circadian variation in expression of neuronal nitric oxide synthase (nNOS) in the hippocampus and contextual aversive conditioning in pigeons (Columba livia)
A ritmicidade circadiana, expressa na alteração do comportamento e em aspectos morfofisiológicos e moleculares ao longo das 24 horas do dia, é uma das funções básicas dos organismos vivos. Os processos comportamentais e os mecanismos moleculares no hipocampo, que estão envolvidos na aprendizagem e memória, demonstram oscilação circadiana. Vários
Publicado em: 2011
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3. Organização temporal em processos de condicionamento classico aversivo e na expressão da proteina Zenk no hipocampo de pombos (C. livia) / Temporal organization of classical aversive conditioning processes and expression of Zenk protein in the hippocampus of pigeons (C. livia)
Part of the knowledge about the mechanisms and neural basis of learning, memory and amnesia is based on the investigation of neural correlates of the behavior of non human animals in aversive situations. Moreover, many studies suggest that these behavioral processes are affected by the circadian timing system. The procedures of classical aversive conditionin
Publicado em: 2009
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4. Processos de aprendizagem e memoria aversiva em pombos : analise do envolvimento da proteina quinase C (PKC) / Aversive learning and memory processes in pigeons : analysis of involvement of protein kinase C
O condicionamento clássico aversivo é utilizado para investigar os mecanismos celulares e moleculares na formação da memória em diferentes espécies de animais. Estes envolvem processos sinápticos que desencadeiam mecanismos de sinalização intracelular com ativação de diferentes quinases em momentos específicos. A ativação da PKC é um dos mecan
Publicado em: 2008
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5. SYSTEMIC ADMINISTRATION OF POLYAMINERGIC AGENTS MODULATE FEAR CONDITIONING IN RATS. / ADMINISTRAÇÃO SISTÊMICA DE AGENTES POLIAMINÉRGICOS MODULA A MEMÓRIA NA TAREFA DE MEDO CONDICIONADO EM RATOS
The polyamines, spermine, spermidine and putrescine, are a group of aliphatic amines that interact with diverse cellular targets such as nucleic acids and proteins. The polyamines may act as physiological modulators of N-methyl-D-aspartate (NMDA) receptors. The processes mediated by NMDA receptor include synaptic plasticity and formation of neural circuitry
Publicado em: 2006
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6. Retrieval of the aversive memory : participation of NMDA receptor and examination of Zenk expression in the hippocampus of pigeons / Evocação da memoria aversiva : participação do receptor NMDA e analise da ativação de Zenk no hipocampo de pombos
The present study investigated the effects of the antagonist of the glutamate NMDA receptor, MK- 801, in the activation of zenk in the hippocampus of pigeons (Hp) submitted to the classical aversive conditioning. Two groups of pigeons received MK-801 (MKG, n=6) or saline (SG, n=6) 30 min before training with tone-shock associations. The control groups receiv
Publicado em: 2005
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7. Pharmacology of human experimental anxiety
This review covers the effect of drugs affecting anxiety using four psychological procedures for inducing experimental anxiety applied to healthy volunteers and patients with anxiety disorders. The first is aversive conditioning of the skin conductance responses to tones. The second is simulated public speaking, which consists of speaking in front of a video
Brazilian Journal of Medical and Biological Research. Publicado em: 2003-04
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8. Classical conditioning in Aplysia californica.
A form of aversive classical conditioning is described in which a chemosensory conditioned stimulus rapidly acquires the ability to modulate a defensive response (escape locomotion). Because Aplysia show both sensitization and classical conditioning, it is now possible to begin to examine the relationship between nonassociative and associative learning on be
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9. Stress facilitates classical conditioning in males, but impairs classical conditioning in females through activational effects of ovarian hormones
Exposure to restraint and brief intermittent tailshocks facilitates associative learning of the classical conditioned eyeblink response in male rats. Based on evidence of sex differences in learning and responses to stressful events, we investigated sexually dimorphic effects of a stressor of restraint and intermittent tailshock on classical eyeblink conditi
The National Academy of Sciences.
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10. Operant conditioning of head waving in Aplysia.
Head waving is a naturally occurring behavior that Aplysia use to explore their environment. Aplysia can be operantly trained to modify their head-waving response, increasing the amount of head waving on one side of their body in order to terminate the presentation of an aversive strong light. Acquisition of the operant response is rapid, within 10 min. Two