PSY 101 Lecture 3: PSY 101 Biology and Behavior
Document Summary
Scientists studying regions of the brain [(cid:494)tools(cid:495)] After death, overall look, good view at structure but no new info because the person is dead. Notice (cid:494)hills and valleys(cid:495) overlying cerebral cortex bumpy nooks and crannies. Recording device that measures electrical activity at cerebral cortex [nothing below] Wave patterns correspond to certain states of consciousness. Inject with tiny amount of radioactively tagged glucose [harmless] Gives info about brain function, not much about structure. Medulla = life support, heart rate, breathing, blood pressure, and circulation keeps us alive, located at top of spine, bottom/back of skull. Pons = (cid:494)bridge(cid:495) relays messages, neurons for sleep and arousal. Cerebellum = muscle movement, coordination, and balance, first to be affected by alcohol. When talking about the brain it(cid:495)s all in integrated networks, they work together. Thalamus = relay center for sensory information like an airport, structure for relaying every sense other than smell. Limbic system [hah] = emotions and memory.
