The primary visual cortex creates a bottom-up saliency map

@inproceedings{Itti2005ThePV,
  title={The primary visual cortex creates a bottom-up saliency map},
  author={E. Itti and Geraint Rees},
  year={2005}
}
It has been proposed that the primary visual cortex (V1) creates a saliency map using autonomous intra-cortical mechanisms. This saliency of a visual location describes the location’s ability to attract attention without top-down factors. It increases monotonously with the firing rate of the most active V1 cell responding to that location. Given the prevalent feature selectivities of V1 cells (many tuned to more than one feature dimension), no separate feature maps, or any subsequent… CONTINUE READING

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