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Mapping multiple features in the population response of visual cortex.

Publication ,  Journal Article
Basole, A; White, LE; Fitzpatrick, D
Published in: Nature
June 26, 2003

Stimulus features such as edge orientation, motion direction and spatial frequency are thought to be encoded in the primary visual cortex by overlapping feature maps arranged so that the location of neurons activated by a particular combination of stimulus features can be predicted from the intersections of these maps. This view is based on the use of grating stimuli, which limit the range of stimulus combinations that can be examined. We used optical imaging of intrinsic signals in ferrets to assess patterns of population activity evoked by the motion of a texture (a field of iso-oriented bars). Here we show that the same neural population can be activated by multiple combinations of orientation, length, motion axis and speed. Rather than reflecting the intersection of multiple maps, our results indicate that population activity in primary visual cortex is better described as a single map of spatiotemporal energy.

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Published In

Nature

DOI

EISSN

1476-4687

Publication Date

June 26, 2003

Volume

423

Issue

6943

Start / End Page

986 / 990

Location

England

Related Subject Headings

  • Visual Cortex
  • Motion Perception
  • General Science & Technology
  • Form Perception
  • Ferrets
  • Evoked Potentials, Visual
  • Brain Mapping
  • Animals
 

Citation

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Basole, A., White, L. E., & Fitzpatrick, D. (2003). Mapping multiple features in the population response of visual cortex. Nature, 423(6943), 986–990. https://doi.org/10.1038/nature01721
Basole, Amit, Leonard E. White, and David Fitzpatrick. “Mapping multiple features in the population response of visual cortex.Nature 423, no. 6943 (June 26, 2003): 986–90. https://doi.org/10.1038/nature01721.
Basole A, White LE, Fitzpatrick D. Mapping multiple features in the population response of visual cortex. Nature. 2003 Jun 26;423(6943):986–90.
Basole, Amit, et al. “Mapping multiple features in the population response of visual cortex.Nature, vol. 423, no. 6943, June 2003, pp. 986–90. Pubmed, doi:10.1038/nature01721.
Basole A, White LE, Fitzpatrick D. Mapping multiple features in the population response of visual cortex. Nature. 2003 Jun 26;423(6943):986–990.
Journal cover image

Published In

Nature

DOI

EISSN

1476-4687

Publication Date

June 26, 2003

Volume

423

Issue

6943

Start / End Page

986 / 990

Location

England

Related Subject Headings

  • Visual Cortex
  • Motion Perception
  • General Science & Technology
  • Form Perception
  • Ferrets
  • Evoked Potentials, Visual
  • Brain Mapping
  • Animals