How noise contributes to contrast invariance of orientation tuning in cat visual cortex.

@article{Hansel2002HowNC,
  title={How noise contributes to contrast invariance of orientation tuning in cat visual cortex.},
  author={David Hansel and C van Vreeswijk},
  journal={The Journal of neuroscience : the official journal of the Society for Neuroscience},
  year={2002},
  volume={22 12},
  pages={5118-28}
}
The width of the orientation tuning curves of the spike response of neurons in V1 is invariant to contrast. This property constrains the possible mechanisms underlying orientation selectivity. It has been suggested that noise circumvents the iceberg effect that would prevent contrast invariance in the purely feedforward mechanism. Here we investigate… CONTINUE READING