Boundary cue invariance in cortical orientation maps.

@article{Zhan2006BoundaryCI,
  title={Boundary cue invariance in cortical orientation maps.},
  author={Chang'an A Zhan and Curtis L Baker},
  journal={Cerebral cortex},
  year={2006},
  volume={16 6},
  pages={896-906}
}
We effortlessly perceive oriented boundaries defined by either luminance changes ('first-order' cues) or texture variations ('second-order' cues). Many neurons in mammalian visual cortex show orientation preference to both types of boundaries, but it is uncertain how they contribute to perceptual orientation cue-invariance at the neuronal population level. Using optical imaging in cat A 18, we observed highly similar orientation preference maps to first-order and a variety of second-order… CONTINUE READING

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