Slide 20 of 20
Notes:
Light from visual stimulus inverted as passes through the lens to the retina at the back of the eye. Light-sensitive cells turn it into an electrical message that is carried along the optic nerve from each eye, crossed over at the optic chiasm and then carried via optic track to the LGN of thalamus. LGN sends it to the the primary striate cortex, then extrastriate cortex, and then association cortices like inferotemporal (ventral stream).
V3-depth & distance Where (dorsal-post. parietal) path: V1-V2-V3-V5-V6
V4-color What path (ventral-inferotemporal): V1-V2-V4
V6-objective position of object
Damage to V5 (aka MT) disrupts perception of movement
Area MSTd receives info from V5 & helps us to perceive the direction in which we are going
Damage to posterior parietal cortex disrupts perception of spatial location of objects; lesions of inferotemporal disrupt ability to perceive & recognize objects.
