PSYC 101 Study Guide - Midterm Guide: Sexual Orientation, Psychological Dependence, Suggestibility
Document Summary
Consciousness: the awareness of internal and external stimuli. Electroencephalograph: an device that monitors the electrical activity of the brain over time by means of recording electrodes attached to the surface of the scalp. Circadian rhythms: the 24-hour biological cycles found in humans and many other species. Suprachiasmatic nucleus: a small structure in the hypothalamus that receptors in the retina send direct inputs to. Slow-wave sleep: sleep stages 3 and 4, during which low-frequency delta waves become prominent in eeg recordings. Rem sleep: a deep stage of sleep marked by rapid eye movements, high frequency brain waves, and dreaming. Partial sleep deprivation: occurs when people make do with substantially less sleep than normal over a period of time. Narcolepsy: a disease marked by sudden and irresistible onsets of sleep during normal waking periods. Sleep apnea: frequent, reflexive gasping for air that awakens a person and disrupts sleep. Somnambulism (sleepwalking): occurs when a person arises and wanders about while remaining asleep.
