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Efeito do contraste local na modulação contextual no wulst visual de corujas suindaras (Tyto furcata)
(Universidade Federal de Minas GeraisBrasilICB - INSTITUTO DE CIÊNCIAS BIOLOGICASPrograma de Pós-Graduação em Ciências Biológicas - Fisiologia e FarmacologiaUFMG, 2016-05-06)
The visual perception is greatly influenced by the context, that is the manner
which elements of a scene are organised into space and time. Contextual
modulation is defined as the information of the receptive field ...
Estudo da seletividade neuronal à orientação e frequência espacial no wulst visual da coruja suindara (Tyto alba): dinâmica de surgimento e separabilidade interdimensional
(Universidade Federal de Minas GeraisBrasilICB - INSTITUTO DE CIÊNCIAS BIOLOGICASPrograma de Pós-Graduação em Ciências Biológicas - Fisiologia e FarmacologiaUFMG, 2016-04-29)
The visual system of barn owl has been the target of numerous studies along the years. The visual wulst is a telencephalic region that receives thalamic afferents and which has certain functional analogy to the mammals ...
Modulação centro-contorno em campos receptivos do wulst visual
(Universidade Federal de Minas GeraisUFMG, 2011-10-07)
Neurons in the primary visual cortex (V1) typically show responsesuppression when stimulated by oriented stimuli larger than their classical receptive fields (CRF). Here, we investigate the prevalence, strength and feature ...
Padronização de testes neurocomportamentais para investigação da importância funcional do wulst visual em corujas buraqueiras (Athene cunicularia)
(Universidade Federal de Minas GeraisUFMG, 2012-02-10)
Birds have been used in numerous researches involving visual-cognitive skills and is an excellent model for comparative neurobiology. Several researches have shown in most birds, especially those with lateral eyes, that ...
Células simples e complexas no wulst visual da coruja
(Universidade Federal de Minas GeraisUFMG, 2015-08-07)
The visual wulst is the avian telencephalic target of the retinothalamofugal pathway. In owls, this area is known to have a close functional resemblance with mammalian primary visual cortex (V1). In his pioneering study, ...
Codificação neural de estímulos visuais ecologicamente realísticos
(Universidade Federal de Minas GeraisBrasilPrograma de Pós-Graduação em NeurociênciasUFMG, 2013-03-14)
Neurons of visual areas, such as simple and complex cells of V1, have distinct
electrophysiological responses when stimulated with natural scene images compared to
responses due to artificial stimuli. In addition to the ...
Invariância ao contraste no wulst visual da coruja-buraqueira, Athene cunicularia
(Universidade Federal de Minas GeraisUFMG, 2011-07-06)
Selectivity for stimulus orientation is a key emergent property of neurons in the mammalian primary visual cortex (V1). Despite 50 years of considerable research efforts, the mechanisms underlying this property are still ...
Efeito do escotoma temporal causado pelo piscar na atividade dos neurônios do Wulst visual da coruja buraqueira (Athene cunicularia)
(Universidade Federal de Minas GeraisUFMG, 2014-08-08)
Several times a minute, we rapidly close and reopen our eyelids. This behaviour, known as blinking, is essential, among other things, to keep the corneal surface healthy and free from potentially hazardous external agents. ...