PSYCH 100 Study Guide - Midterm Guide: Tachycardia, Sleep Spindle, Circadian Rhythm

• School: UMASS-Amherst
• Department: Psychology & Brain Sciences
• Course: PSYCH 100
• Professor: John Bickford

Document Summary

Consciousness: a persons momentary awareness of experiencing sensations, thoughts, and feelings. (analogous to watching a theatre production) Altered states of consciousness: states that differ from normal, working consciousness (drugs, intense emotional experiences, sleep) Sleep deprivation: reduces functions. becomes almost unbearable after about 3 days. record is 11 days. no long term effects: impaired attention/alertness, impaired concentration/ problem solving, irritability and discomfort, trembling hands, drooping eyelids, staring, pain sensitivity, hallucinations, microsleeps. Normal range of sleep is 5-11 hours, median is 8 hours: sleep de cits produce similar problems as deprivation. Stages of sleep: first half of night dominated by stage 3&4 second half dominated by stage 1&2: transition between sleep and wakefulness. Possible vivid imagery, hypnic jerks: deeper than stage one, a slower more regular wave pattern along with momentary interruptions of sleep spindles. Theta waves: slow brain waves with greater peaks and valleys than stage 2. Delta waves: the deepest stage of sleep.