The Multisensory and Multidimensional Nature of Object Representation.

Abstract

Recent fMRI experiments revealed similar neural representations across different types of 2D visual stimuli; however, real 3D objects affording action differentially affect neural activation and behavioral results relative to 2D objects. Recruitment of multiple sensory regions during unisensory (visual, haptic, and auditory) object shape tasks suggests that shape representation may be modality invariant. This mini review explores the overlapping neural regions involved in object shape representation, across 2D, 3D, visual, and haptic experiments.