03 - Early visual pathways and primary visual cortex - Oct 31, 2016
Topics addressed in the lecture:
- Retinofugal projections
- Lateral Geniculate Nucleus (LGN)
- M- and P-pathways
- RCG and LGN color opponency
- V1 anatomical layers
- V1 ocular dominance
- V1 orientation selectivity
- V1 disparity tuning
- V1 simple cell model (Hubel & Wiesel)
- V1 non-classical RF properties (effect of visual context)
Examples for question you should be able to answer:
- Which V1 layers are part of the M-pathway?
- Which visual stimulus properties are represented and organized in structured maps in the primary visual cortex (V1) of primates?
- How is ocularity represented and spatially organized in a map in the primary visual cortex (V1) of primates? With which technique and how has this map been visualized as a functional organization principle in awake animals?
Important concepts & methods:
- Divergence, convergence, and feedback
- Cortical layer structure
- Ocular dominance
- Orientation selectivity
- Interocular disparity
- Ice-cube model vs. pinwheel organization
- Iso-orientation facilitation and iso-orientation inhibition
- Lesion studies
- Optical imaging
Last update of this page: Nov 9, 2016