PSYCH 2E03 Lecture Notes - Fusiform Face Area, Simultanagnosia, Two-Streams Hypothesis
15 Jun 2013
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Document Summary
Vision for cognition and vision for survival (3) Vignettes with lesions in the ventral and dorsal stream lesion-experiments in monkeys: Object discrimination: based on colour form landmark discrimination: identify an object in relation to the position of another (dorsal stream) Disorder of visually guided movements of the arms towards a goal with damage to dorso-dorsal stream. Not able to coordinate the movement along with their eyes. Not able t perceive the level of coffee raising but can notice it spilling over as inability to perceive movement the direction of the flow of liquid changes seeing in frames and not in a continuous manner. Problem in paying attention to one half of the body lesion in the right parietal lobe lesion in ventro-dorsal (involved in spatial location) stream especially on the right side. Visual agnosia: not able to recognize, lesion in v4 area ventral stream. Prosopagnosia: inability to recognize faces, lesion in fusiform face area of ventral stream.
