Unformatted text preview: ring in the off-center ganglion cell.
This sends a redundant signal to the visual cortex that
the light is on and that it is not off.! Visual Pathway! 1) Energy containing information about stimulus must reach the eye.!
2) Rod & cones in retina transduce energy into neural response.!
3) Optic nerve transfers neural response to retinotopically-organized thalamus.!
4) Thalamus relays the neural response to V1 in the visual cortex.!
5) Hierarchically-organized visual cortex transforms neural code into a
Takes all the info in the ganglia cells and bundles it up to the optic nerve and travels from the retina and then makes its ﬁrst stop in the thalamus. From the
thalamus it makes a synapse with another set of neuron, and then go back to the primary-cerebral cortex (V1). Other pathways that come into play, but for
about 90% this is the pathway it takes. Then from the V1 it takes a series of the processing steps. The end result when you pull everything together is you get a
perception. Visual Pathway!
Damage to t...
View Full Document
- Fall '11
- Lateral geniculate nucleus, visual cortex