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| Lima,B.; Fiorani,M.; Gattass,R.. |
| A Cebus apella monkey weighing 4 kg was trained in a saccadic eye movement task and while the animal performed the task we recorded the extracellular activity of perirhinal cortical neurons. Although the task was very simple and maintained at a constant level of difficulty, we observed considerable changes in the performance of the monkey within each experimental session. The behavioral states responsible for such variation may be related to arousal, motivation or attention of the animal while engaged in the task. In approximately 20% (16/82) of the units recorded, long-term direct or inverse correlations could be demonstrated between the monkey's behavioral state and the cells' ongoing activity (independent of the visual stimulation or of the specific... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Perirhinal cortex; Behavioral states; Motivation; Cebus monkeys. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000100010 |
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| Das,A.; Franca,J.G.; Gattass,R.; Kaas,J.H.; Nicolelis,M.A.L.; Timo-Iaria,C.; Vargas,C.D.; Weinberger,N.M.; Volchan,E.. |
| This article is an edited transcription of a virtual symposium promoted by the Brazilian Society of Neuroscience and Behavior (SBNeC). Although the dynamics of sensory and motor representations have been one of the most studied features of the central nervous system, the actual mechanisms of brain plasticity that underlie the dynamic nature of sensory and motor maps are not entirely unraveled. Our discussion began with the notion that the processing of sensory information depends on many different cortical areas. Some of them are arranged topographically and others have non-topographic (analytical) properties. Besides a sensory component, every cortical area has an efferent output that can be mapped and can influence motor behavior. Although new behaviors... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Visual; Somatosensory; Auditory; Motor; Cortex; Topography; Learning; Synesthesia. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001001200001 |
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