Object-based attention to one of two superimposed surfaces alters responses in human early visual cortex.

ABSTRACT: Faced with an overwhelming amount of sensory information, we are able to prioritize the processing of select spatial locations and visual features. The neuronal mechanisms underlying such spatial and feature-based selection have been studied in considerable detail. More recent work shows that attention can also be allocated to objects, even spatially superimposed objects composed of dynamically changing features that must be integrated to create a coherent object representation. Much less is known about the mechanisms underlying such object-based selection. Our goal was to investigate behavioral and neuronal responses when attention was directed to one of two objects, specifically one of two superimposed transparent surfaces, in a task designed to preclude space-based and feature-based sel

SUBMITTER: Ciaramitaro VM 

PROVIDER: S-EPMC3074415 | biostudies-literature | 2011 Mar

REPOSITORIES: biostudies-literature