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optic nerve

optic nerve. 1 deg. Striate Cortex (V1). Hubel & Wiesel. Hallem & Carlson 2006 (via Rachel). Odorant Receptors. amines. lactones. acids. sulfur. terpenes. aldehydes. ketones. aromatics. alcohols. esters. Hallem & Carlson 2006. 1 deg. Striate Cortex (V1). Hubel & Wiesel.

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optic nerve

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  1. optic nerve

  2. 1 deg Striate Cortex (V1) Hubel & Wiesel

  3. Hallem & Carlson 2006 (via Rachel)

  4. Odorant Receptors amines lactones acids sulfur terpenes aldehydes ketones aromatics alcohols esters Hallem & Carlson 2006

  5. 1 deg Striate Cortex (V1) Hubel & Wiesel

  6. 1 deg IT face cell Striate Cortex (V1) Tsao et al. 2006

  7. 1120 faces! Marge Livingstone & Doris Tsao

  8. Distribution of Face Selectivity Indices Marge Livingstone & Doris Tsao

  9. x x x x x x x x x x x x + + + Striate Cortex LGN X = excitation = inhibition Hubel & Wiesel 1962

  10. 80% contrast 40% contrast 80 R1 0 -25º 0º +25º response (spikes/s) orientation Sclar & Freeman 1982

  11. 1.0 attend in attend out 0.5 0.0 -90º -60º -30º 0º 30º 60º 90º V4 response orientation McAdams & Maunsell 1999

  12. adapting direction 100 spikes/s 50 0 0 180 -180 direction of motion Kohn & Movshon 2004

  13. Late: >150 ms 140 spikes/s Early: 65 to 85 ms 140 spikes/s  = 45°  = 90°  = 135° Pack & Born 2001

  14. Lorençeau et al. 1993

  15. sp/sec Spikes from an MT Neuron: Identical Stimulus, 210 Repeats trial # time (ms) Shadlen & Newsome 1994

  16. Rapid Scene Perception: Time of 1st Spike? http://www.cerco.ups-tlse.fr/fr_vers/annuaire/michele_fabre_thorpe.htm# Michele Fabre-Thorpe

  17. http://en.wikipedia.org/wiki/Histogram_equalization

  18. Attneave 1954

  19. Webster, Mizokami, and Webster 2007

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