| Registro completo |
| Provedor de dados: |
BJMBR
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| País: |
Brazil
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| Título: |
Induction of Zenk protein expression within the nucleus taeniae of the amygdala of pigeons following tone and shock stimulation
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| Autores: |
Brito,I.
Britto,L.R.G.
Ferrari,E.A.M.
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| Data: |
2011-08-01
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| Ano: |
2011
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| Palavras-chave: |
Amygdala
Nucleus taeniae of the amygdala
Fear conditioning
Zenk
Pigeon
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| Resumo: |
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 different conditions: with tone-shock associations (experimental group; EG); with shock-alone presentations (shock group; SG); with tone-alone presentations (tone group; TG); with exposure to the training chamber without stimulation (context group; CG), and with daily handling (naive group; NG). The number of immunoreactive nuclei was counted in the whole TnA region and is reported as density of Zenk-positive nuclei. This density of Zenk-positive cells in the TnA was significantly greater for the EG, SG and TG than for the CG and NG (P < 0.05). The data indicate an expression of Zenk in the TnA that was driven by experience, supporting the role of this brain area as a critical element for neural processing of aversive stimuli as well as meaningful novel stimuli.
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| Tipo: |
Info:eu-repo/semantics/other
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011000800005
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| Editor: |
Associação Brasileira de Divulgação Científica
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| Relação: |
10.1590/S0100-879X2011007500066
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| Formato: |
text/html
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| Fonte: |
Brazilian Journal of Medical and Biological Research v.44 n.8 2011
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| Direitos: |
info:eu-repo/semantics/openAccess
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