PSYC 212 Lecture Notes - Lecture 11: Principles Of Grouping, Extrastriate Cortex, Visual Cortex

• School: McGill University
• Department: Psychology
• Course: PSYC 212
• Professor: Mathieu Roy

Document Summary

What and where pathways: extrastriate cortex (v2, v3, etc. ): region of cortex bordering the primary visual cortex and containing multiple areas involved in visual processing. Receptive fields larger, more complex from v1 to higher level areas: where pathway: to parietal lobe for location of objects in space. Midget bipolar cells p ganglion cells parvocellular layers. P cells w/ small receptive field, high resolution: what pathway: to temporal lobe for object recognition. Diffuse bipolar cells m ganglion cells magnocellular layers. M cells w/ large receptive field, sensitive to movement: lesion: region of damaged brain, agnosia: failure to recognize objects but can see them. Apperceptive: normal vision, put together object, lesion close to v1, cannot copy. Associative: perceive the object but can"t identify, lesion farther from v1, can copy: inferotemporal (it) cortex: part of cerebral cortex in lower portion of temporal lobe, important in object recogniztion. Large repective field good at objects but not spots/lines.