PSYCH101 Lecture Notes - Lecture 4: Problem Solving, Sleep Deprivation, Temporal Lobe

• School: University of Waterloo
• Department: Psychology
• Course: PSYCH101
• Professor: Megan Mc Carthy

Document Summary

Consciousness: subjective awareness of the world and ourselves including internal and external stimuli. 1: gamma: hyper brain activity, high cognitive functioning, high frequency. 5: delta: deep sleep & not dreaming, low frequency. Activity to supress brain processes to keep us asleep. Awake brain waves, vivid dreams, rapid eye movement, rem gets interrupted most if sleep is reduced, brain stem blocks motor signals to the body. Purpose of sleep: restore the body/energy, memory consolidation, problem solving, growth. Sleep deprivation: exercise, sleep environment, wake up patterns, avoid alcohol/caffeine/bright lights before bed. Dreams: electrochemical events due to brainstem stimulation of the forebrain and eyes. Dream themes: falling/chase/failing influenced by concerns, stimuli, self (lucid aware & control) Pons releases acetylcholine > forebrain/cortex = cortical arousal in brain > initiates dream process (shut down by serotonin and norepinephrine) Sexual and aggressive drives that can"t be expressed when awake. Manifest content: what they appear to be about on the surface.