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Convolutions and Correlations

This study explores how neurons in the primary visual cortex (V1) function as filters for orientation-selective responses to stimuli generated by the retina. It focuses on the local circuits and specific connections between the lateral geniculate nucleus (LGN) and V1, showcasing how these interactions lead to the selectivity of cortical simple cells. The analysis includes the effects of drifting grating stimuli and the significance of null-responses as indicators of inhibition. Understanding these mechanisms sheds light on how visual information processing is accomplished in the brain.

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Convolutions and Correlations

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  1. Convolutions and Correlations

  2. Neurons as Filters

  3. Orientation selective cortical simple cell Local Circuits in V1: Retina stimulus Selectivity is generated by specific connections LGN V1

  4. =

  5. Convolution and cell responses Image on the retina horizontal cross section

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  7. Drifting grating stimulus

  8. A Null-Response is indicative of inhibition

  9. Detectors are so small close to the fixation point that their responses are similar.

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