منابع مشابه
The cortical visual area V6 in macaque and human brains.
Single cell recording and neuro-anatomical techniques in the monkey have allowed to find a mosaic of visual areas in the temporo-parieto-occipital cortex. Thanks to neuroimaging methods, several of these areas have been mapped also in the human brain and named in humans based on homologies in their visuotopic organization with non-human primate areas. We have recently found a new, retinotopical...
متن کاملHeading encoding in the macaque ventral intraparietal area (VIP).
We recorded neuronal responses to optic flow stimuli in the ventral intraparietal area (VIP) of two awake macaque monkeys. According to previous studies on optic flow responses in monkey extrastriate cortex we used different stimulus classes: frontoparallel motion, radial stimuli (expansion and contraction) and rotational stimuli (clockwise and counter-clockwise). Seventy-five percent of the ce...
متن کاملVisual selectivity for heading in the macaque ventral intraparietal area.
The patterns of optic flow seen during self-motion can be used to determine the direction of one's own heading. Tracking eye movements which typically occur during everyday life alter this task since they add further retinal image motion and (predictably) distort the retinal flow pattern. Humans employ both visual and nonvisual (extraretinal) information to solve a heading task in such case. Li...
متن کاملArea MST and heading perception in macaque monkeys.
The macaque medial superior temporal area (MST) is proposed to be specialized for analyzing complex 'optic flow' information. Such space-varying motion patterns provide a rich source of information about self motion, scene structure and object shape. We report the performance of rhesus macaques on a two-alternative 'heading' task, in which they reported whether horizontally varying, simulated t...
متن کاملSelective tuning for contrast in macaque area V4.
Visually responsive neurons typically exhibit a monotonic-saturating increase of firing with luminance contrast of the stimulus and are able to adapt to the current spatiotemporal context by shifting their selectivity, therefore being perfectly suited for optimal contrast encoding and discrimination. Here we report the first evidence of the existence of neurons showing selective tuning for cont...
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ژورنال
عنوان ژورنال: Journal of Neuroscience
سال: 2015
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.2903-15.2015