Common Dorsal Stream Substrates for the Mapping of Surface Texture to Object Parts and Visual Spatial Processing.

ABSTRACT: Everyday objects are often composed of multiple parts, each with a unique surface texture. The neural substrates mediating the integration of surface features on different object parts are not fully understood, and potential contributions by both the ventral and dorsal visual pathways are possible. To explore these substrates, we collected fMRI data while human participants performed a difference detection task on two objects with textured parts. The objects could either differ in the assignment of the same texture to different object parts ("texture-location") or the types of texture ("texture-type"). In the ventral stream, comparable BOLD activation levels were observed in response to texture-location and texture-type differences. In contrast, in a priori localized spatial processing reg

SUBMITTER: Zachariou V 

PROVIDER: S-EPMC6632085 | biostudies-literature | 2015 Dec

REPOSITORIES: biostudies-literature