PSYB57H3 Lecture Notes - Lecture 3: Herpesviral Encephalitis, Visual Agnosia, Cortical Blindness
Document Summary
From the environment to the brain: sensation. Transduction via specialized sensory-specific receptors: perception. Cortical processing of the visual field: damage to the occipital lobe leads to partial or full cortical blindness. Scotomas in the visual field: blindness and the brain. The occipital lobes can be reprogramed to touch if someone has never seen (cid:862)(cid:271)li(cid:374)dsight(cid:863) before (blind from birth: evidence of visual perception despite full cortical blindness (conscious experience of full blindness) Cortical processing of color: sensation and perception of color. Cones pick up different wave lengths of color and then will transduced into neural signals: findings from fmri studies of color (v4, cerebral achromatopsia. Damage to occipital color processing region resulting in hemi- or full field loss of. Cortical processing of motion color perception: sensation and perception of motion, cortical processing of motion and fmri (v5/mt, cerebral akinetopsia. Damage to occipital motion processing region resulting in an impairment of motion perception. Cortical streams of perceptual processing: ventral stream.
