ACB 334 Lecture Notes - Lecture 20: Calcarine Sulcus, Visual Cortex, Right Fielder
4 Apr 2018
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Document Summary
Light enters eyes via lens hits posterior portion of retina passes to ganglionic cell layer optic nerve. Cones= bright light an colours center of eye. Right field of view projects onto left sides of retina. Images from temporal retina stay lateral and do not cross. Lgn pvc: gt optic radiaton lots of different tracts being sent out from lgn. Lower visual field projects onto superior of calcarine fissure. Unimodal areas: complex aspects of vision/ object discrimination, color and depth, and spatial relationships. Unimodal area also projects into pulvinar for behavioural ques for what you are seeing. Chiasm: decussation + lateral visual field + peripheral vision + info from both eyes. Optic nerve dysfunction: only loss of monocular vision for 1 eye, still have monocular and binocular vision for the other eye. Optic chiasm dysfunction: loss of sight in both temporal eyes. Optic tract injury: everything here back is contralateral. contralateral visual deficit and same side deficit for both eyes.
