#5: On how vision works – with Li Zhaoping

We know a lot about of how neurons in the primary visual cortex (V1) of mammals respond to visual stimuli.

But how does the vast information contained in the spiking of millions of neurons in V1 give rise to our visual percepts? 

The guest’s theory is that V1 acts as a “saliency detector” directing the gaze to the most important object in the visual scene. Then V1 in collaboration with higher visual areas determines what this object is in an iterative feedforward-feedback loop. 

Link to book mentioned in the podcast:

  • Li Zhaoping: “Understanding Vision: Theory, Models, and Data”, Oxford University Press, 2014
  • Home page of Li Zhaoping

    The podcast was recorded on October 17, 2023 and lasts 1 hour and 21 minutes.

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