Article,
Visual field maps and stimulus selectivity in human ventral occipital cortex.
Nature Neuroscience, 8 (8): 1102--1109 (2005)
DOI: 10.1038/nn1507
Abstract
Human visual cortex is organized into distinct visual field maps whose
locations and properties provide important information about visual
computations. There are two conflicting models of the organization
and computational role of ventral occipital visual field maps. We
report new functional MRI measurements that test these models. We
also present the first coordinated measurements of visual field maps
and stimulus responsivity to color, objects and faces in ventral
occipital cortex. These measurements support a model that includes
a hemifield map, hV4, adjacent to the central field representation
of ventral V3. In addition, the measurements demonstrate a cluster
of visual field maps in ventral occipital cortex (VO cluster) anterior
to hV4. We describe the organization and stimulus responsivity of
two new hemifield maps, VO-1 and VO-2, within this cluster. The maps
and stimulus responsivity support a general organization of visual
cortex based on clusters of maps that serve distinct computational
functions.
