PSYC 2390 Lecture 4: Chapter 4
1 Dec 2016
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Document Summary
Spatial organization: how different locations in the environment and on the retina are represented by activity at speci c location in the visual cortex. Neural maps: once the scene you are looking at gets transformed into electrical signals they are organized into the form of a neural map. The neural map on the stiate cortex (area v1): Determining where neurons re in the cortex depending on what part of the retina is stimulated. Where the image re ects on the retina and where it res in the cortex. Retinotopic map: locations on the cortex that correspond to locations on the retina. Cortical magni cation: re ected images closer to the fovea need more space in the cortex (a&b) than those in the peripheral retina area (c&d) Cortical magni cation factor: the size of the magni cation. Brain imaging: creating pictures of the brain"s activities. Example: mri (structures in the brain) fmri (activity in the brain) (picture)
