Week 5 Notes
Week 5 Notes PSYCH 3513 - 0020
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This 2 page Class Notes was uploaded by Shelby Mann on Monday September 28, 2015. The Class Notes belongs to PSYCH 3513 - 0020 at Ohio State University taught by Andrew Leber in Summer 2015. Since its upload, it has received 45 views. For similar materials see Introduction to Cognitive Neuroscience in Psychlogy at Ohio State University.
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Better than the professor's notes. I could actually understand what the heck was going on. Will be back for help in this class.
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Date Created: 09/28/15
Psych 3513 Intro to Cognitive Neuroscience Week 5 Notes Object Recognition quotWherequot Pathway Superior Longitudinal Fasciculous amp Posterior Parietal Cortex Dorsal Stream Parietal Lobe Large receptive fields Good at detecting peripheral stimuli Responds to array of sizes though greater response to larger stimuli What Pathway Inferior Longitudinal Fasciculous amp Inferior Temporal Cortex Ventral Stream Temporal Lobe Encompass fovea Information on right or left field Visual Agnosia Without knowledgequot Inability to recognize Different types of Agnosia Apperceptive More posterior lesions earlier in visual processing stream Right lateralized people with right damage Failures in basic perceptual processing trouble making out objects Associative Left hemisphere more anterior lesions High level processing failures Common objects Integrative Right Left hemisphere more anterior lesions Category Specificity Implications Asymmetric loss of animate objects but not inanimate no double dissociations found We interact more with inanimate things possible additional action representation perhaps in motor system Left Premotor becomes active when viewing tools Visual areas are segregated by living vs inanimate objects Two main explanations Motor system engaged when viewing inanimate objects helping agnosics to identify these objects better than animate objects Ventral visual system is segregated by animate vs inanimate largescale regions Based on vasculature regions representing animate objects may be more prone to damage due to encephalitis or stroke Facial Recognition Tanaka and Farah 1993 Concluded that faces are represented holistically parts not represented on their own only in context or whole face Holistic Effect Faces are hard to perceive upside down the holistic effect disappears Prosopagnosia Selective inability to recognize faces Face blindness No acquired brain damage typically congenital though lesions do produce prosopagnosia Typically temporal or occipital lesions Rarely parietal Prosopagnosics can tell that a face is a face just not whose face it is