PSYC 215 Chapter Notes - Chapter 5: Two-Streams Hypothesis, Parietal Lobe, Devo

• School: Emory University
• Department: Psychology
• Course: PSYC 215
• Professor: Daniel Dilks

Document Summary

Gazzaniga ch 6: 222-229: multiple pathways for visual perception, visual info --> v1 --> ventral (occipitotemporal) / dorsal (occipitoparietal) stream. Dorsal stream occipitoparietal: object perception and recognition -- what, temporal lobe, neuron receptive fields always encompass. Lateral occipital cortex (loc: auditory -- anterior (what is sound); posterior (where is sound, optic ataxia: recog objects but cannot use visual info to guide actions, saccades: directed eye mvmts, selective attention: enhancement of processing at some locations. Position task (determine if objects in same location in 2 pics) object task (determine if objects same in 2 pics) ____ Explicit matching task: testing orientation of object action task : inserting object in slot. Differential impairment in ventral/dorsal stream fxns: dorsal and ventral streams -- normal devo. Dorsal stream > ventral stream -- development: dorsal may devo a few months after ventral. Object permanence not until 8-9 months: dorsal and ventral streams -- unusual devo. Action task -- posted a card into oriented slot.