The maximum range and timing of excitatory contextual modulation in monkey primary visual cortex
- Publisher:
- Cambridge Univ Press
- Publication Type:
- Journal Article
- Citation:
- Visual Neuroscience, 2006, 23, 5, pp. 721 - 728
- Issue Date:
- 2006-01
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Contextual modulations of receptive field properties by distal stimulus configurations have been shown for a variety
of stimulus paradigms. A survey of excitatory contextual modulation data for V1 shows the maximum scale of
interactions, measured in terms of distance in V1, to be between 10 mm and 30 mm. Different types of excitatory
contextual modulation in V1 occur throughout the interval of 40–250 ms after stimulus delivery. This window
provides opportunity for global propagation of visual contextual information to a subset of V1 neurons, via several
routes within the visual system. We propose a number of experiments and analyses to confirm the results from this
empirical survey.
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