PSY 201 Lecture 11: Notes for lecture 11 including clicker questions with answers
11 May 2017
School
Department
Course
Professor
Document Summary
Retinotopy: primary visual cortex and many higher order visual cortices contain topographic map of the retina. Magnification: fovea is overrepresented, periphery is underrepresented. About of cortex processes visual information. From v1, information travels to v2, and then to many more visual areas. Dorsal stream: analysis of motion and spatial relations. Ventral stream: analysis of form and color. Temporal lobe lesion: leads to problems with object discrimination. Parietal lobe lesion: leads to problems with landmark localization. Damage to inferior temporal cortex in humans// visual agnosia. Can see but can"t recognize what they see. Sometime limited to one or two categories (cannot recognize animals, or tools, or faces) Ventral pathway specializes in object recognition, irrespective of location, orientation and viewpoint. Region: rods & cones, ganglion cells, primary visual cortex, ventral visual cortex. Preferred stimulus: light of specific wavelength, spots of light contrasting from surround, lines of specific orientation, specific objects, any viewpoint.
