PSYCH101 Study Guide - Midterm Guide: Non-Rapid Eye Movement Sleep, Color Vision, Afterimage

• School: University of Waterloo
• Department: Psychology
• Course: PSYCH101
• Professor: Paul Wehr

Document Summary

Psych 101 - midterm ii sa questions (5,7,8,9) Compare and contrast the different stages of sleep and wakefulness. Be sure to discuses differences in brain activity, motor activity, and mental activity in your answer (7 marks). Light sleep (stages 1 & 2): hypnic jerks (stage 1); respiration & heart rate slow; temperature decreases (increase in parasympathetic activity, conservation of energy in stage 2) Deep sleep (stage 3/4): slow- wave sleep. Rapid movement of the eyes, increased heart rate, rise in blood pressure, quickened breathing, engorged penis/clitoris, limp skeletal muscles (paralysis). Dreaming - long bursts of rapid, irregular brain activity (alertness). Sleep-walking and talking don"t occur during rem sleep because you are paralyzed. Stage 1 instead of beta waves dreams involve some stream of consciousness! (normal waking thought, alert problem solving) Compare and contrast the trichromatic theory with the opponent-processing. What evidence is there to support each (6 marks).