Neural representation for object recognition in inferotemporal cortex

Curr Opin Neurobiol. 2016 Apr;37:23-35. doi: 10.1016/j.conb.2015.12.001. Epub 2016 Jan 6.

Abstract

We suggest that population representation of objects in inferotemporal cortex lie on a continuum between a purely structural, parts-based description and a purely holistic description. The intrinsic dimensionality of object representation is estimated to be around 100, perhaps with lower dimensionalities for object representations more toward the holistic end of the spectrum. Cognitive knowledge in the form of semantic information and task information feed back to inferotemporal cortex from perirhinal and prefrontal cortex respectively, providing high-level multimodal-based expectations that assist in the interpretation of object stimuli. Integration of object information across eye movements may also contribute to object recognition through a process of active vision.

Publication types

  • Review

MeSH terms

  • Cerebral Cortex / physiology*
  • Eye Movements
  • Humans
  • Pattern Recognition, Visual / physiology*
  • Prefrontal Cortex / physiology
  • Vision, Ocular
  • Visual Perception / physiology*