PSYCH 120A Study Guide - Midterm Guide: Corpus Callosum, Radioactive Tracer, Parietal Lobe
Document Summary
Lecture, discussion sections, assigned readings and zaps. Top down: conceptually driven, making inferences based on past experiences. Representation: set of objects that stand for another set of objects by virtue of having the same causal relational structure. Processes: operations that transform one representation into another. Central fissure: divides the frontal and parietal. Lateral fissure: divides the frontal and temporal. Corpus callosum: major white matter pathway that connects the two hemispheres of the brain. Asked what patient sees left hemisphere sees the right visual field and can verbalize that. Asked to pick up object with left hand pick up object on left visual field. Aligns nuclei and measures time taken to return to original state. Better temporal resolution than mri and pet. Tells us what regions are active, based on positrons released during radioactive decay. Some neurons prefer horizontal bars, some vertical, etc. Some neurons prefer sensory input to its center, some to its surrounding.
