Specificity of V1-V2 orientation networks in the primate visual cortex

Anna W. Roe, Daniel Y. Ts'o

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

The computation of texture and shape involves integration of features of various orientations. Orientation networks within V1 tend to involve cells which share similar orientation selectivity. However, emergent properties in V2 require the integration of multiple orientations. We now show that, unlike interactions within V1, V1-V2 orientation interactions are much less synchronized and are not necessarily orientation dependent. We find V1-V2 orientation networks are of two types: a more tightly synchronized, orientation-preserving network and a less synchronized orientation-diverse network. We suggest that such diversity of V1-V2 interactions underlies the spatial and functional integration required for computation of higher order contour and shape in V2.

Original languageEnglish (US)
Pages (from-to)168-178
Number of pages11
JournalCortex
Volume72
DOIs
StatePublished - Nov 1 2015

Keywords

  • Cortico-cortical connectivity
  • Cross correlation
  • Optical imaging
  • Orientation selectivity
  • V1
  • V2

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience

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