PSYCH101 Study Guide - Midterm Guide: Non-Rapid Eye Movement Sleep, Suprachiasmatic Nucleus, Sleep Deprivation

• School: University of Waterloo
• Department: Psychology
• Course: PSYCH101
• Professor: Richard Ennis

Document Summary

Hr slows, breathing more irregular, muscles relax (w/ sudden twitch or jerk) Sensory equipment closes down: vision first, hearing, then (in rapid order) Electrical voltage w/ more diffuse firing throughout brain. Hypnagogic hallucinations experiences just before nodding off (lucid dreams) Tend to be surprising, involve movement and have red as dominant colour. Most common: falling or stepping into space. Stages of sleep polysomnography = set of objective measurements used to examine physiological variables during sleep; respiration, body temperature. Rhythm over period of time longer than a day. Entrainment when biological rhythms becomes in sync to external cues. Higher alertness and cognitive functioning during preferred times. Body needs to restore energy levels, repair any wear & tear lack of sleep cognitive decline, emotional disturbances, impaired functioning of immune system. More efficient after an exhausting day, but we do not. Prey animals would sleep less and during the time when predator hunts; predator will sleep for a long time.