Contrast-invariant orientation tuning in cat visual cortex: thalamocortical input tuning and correlation-based intracortical connectivity.

@article{Troyer1998ContrastinvariantOT,
  title={Contrast-invariant orientation tuning in cat visual cortex: thalamocortical input tuning and correlation-based intracortical connectivity.},
  author={Todd W. Troyer and Anton E. Krukowski and Nicholas J. Priebe and K. D. Miller},
  journal={The Journal of neuroscience : the official journal of the Society for Neuroscience},
  year={1998},
  volume={18 15},
  pages={5908-27}
}
The origin of orientation selectivity in visual cortical responses is a central problem for understanding cerebral cortical circuitry. In cats, many experiments suggest that orientation selectivity arises from the arrangement of lateral geniculate nucleus (LGN) afferents to layer 4 simple cells. However, this explanation is not sufficient to account for the contrast invariance of orientation tuning. To understand contrast invariance, we first characterize the input to cat simple cells generated… CONTINUE READING
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