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Vidna kognicija

Vidna kognicija. Danko Nikoli ć. Teme. Neurofiziološki kodovi prijenosa i obrade informacija u vidnom sustavu Dva kôda za percepciju svjetline Problem povezivanja dijelova vidne scene u cjelinu (tzv. binding problem ) Uloga pažnje u pohranjivanju informacija u radno pamćenje

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Vidna kognicija

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  1. Vidna kognicija Danko Nikolić

  2. Teme • Neurofiziološki kodovi prijenosa i obrade informacija u vidnom sustavu • Dva kôda za percepciju svjetline • Problem povezivanja dijelova vidne scene u cjelinu (tzv. binding problem) • Uloga pažnje u pohranjivanju informacija u radno pamćenje • Uloga radnog pamćenja za formiranje dugoročnog vidnog pamćenja • Mehanizmi sinestezijskih asocijacija

  3. E = mc2 System neuroscience • Relationship between the brain on one side (the physical system) and the cognitive processes and psychological experiences on the other side (the behavior of the system).

  4. Questions • What are our methods? • How far can we go? • What are our limitations?

  5. Micro-world of neurophysiology

  6. Dynamics of sodium (Na+) and potassium (K+) ions.

  7. Cat area 17

  8. Intracellular and extra-cellular recordings

  9. Experimental setup www.ActiveSTIM.com

  10. Demo movie: spikes

  11. Receptive field

  12. A B C RFs and orientations

  13. Simple cells Complex cells

  14. Optical imaging

  15. Orientation map

  16. Infero-temporal cortex (IT)

  17. Lateral inhibition

  18. Mexican hat function

  19. Perceptual integration and organization

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