PSY-303 Study Guide - Quiz Guide: Lateral Corticospinal Tract, Histamine, Lateral Geniculate Nucleus
Document Summary
The path of vision (input: part of the visual input goes to the thalamus and from there to the visual cortex. Parvocellular neurons: mostly located in or near the fovea, have smaller cell bodies and small receptive fields, highly sensitive to detect color and visual detail. Magnocellular neurons: distributed evenly throughout the retina, have larger cell bodies and visual fields, highly sensitive to large overall pattern and moving stimuli. Koniocellular neurons: have small cell bodies, found throughout the retina. In the visual cortex, cells are grouped together in columns perpendicular to the surface: cells within a given column process similar information, respond either mostly to the right or left eye, or respond to both eyes equally. Stereoscopic depth perception: a method of perceiving distance in which the brain compares slightly different inputs from the two eye. Strabismus (lazy eye: a condition in which the eyes do not point in the same direction, a muscle problem, depth perception is impaired.
