In the visual system receptive fields represent the spatial selectivity of neurons for a given set of visual inputs. Their invariance is thought to be caused by a hardwired input configuration, which ensures a stable ‘labeled line’ code for the spatial position of visual stimuli. On the other hand, changeable receptive fields can provide the visual system with flexibility for allocating processing resources in space. The allocation of spatial attention, often referred to as the spotlight of attention, is a behavioral equivalent of visual receptive fields. It dynamically modulates the spatial sensitivity to visual information as a function of the current attentional focus of the organism. Here we focus on the brain system for encoding visual motion information and review recent findings documenting interactions between spatial attention and receptive fields in the visual cortex of primates. Such interactions create a careful balance between the benefits of invariance with those derived from the attentional modulation of information processing according to the current behavioral goals.
Attention Vision Rhesus monkeys Cortex Receptive field
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Conflict of interest
On behalf of all authors, the corresponding author states that there are no conflicts of interest.
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