PSYC 1010 Lecture Notes - Lecture 5: Non-Rapid Eye Movement Sleep, Lucid Dream, Sleep Deprivation

• School: York University
• Department: Psychology
• Course: PSYC 1010
• Professor: Agnieszka Kopinska

Document Summary

Sigmund freud saw consciousness as the interests that were below the surface of the stream. The electroencephalo-graph (eeg) is a device that monitors electrical activity of the brain over time by means of recording electrodes attached to the surface of the scalp. The electromyograph (emg) records muscular activity and tension. Biological rhythms are periodic fluctuations in physiological functioning. Hypnagogic imagery, scrambled, bizarre, and dreamlike images that flit in and out of consciousness, as well as sudden body jerks. Hypnic jerks, brief muscular contractions that occur as people fall asleep. Sleep spindles and mixed eeg activity (1-2 second bursts of rapid brain activity) Brain activity decreases, heart rate slows, body temperature decreases, and our muscles are more relaxed. Stage throughout the night that you tend to always go back to approx. 65% of your night you will be in stage 2 of sleep. Regular appearance of delta waves (0. 5 2 cps)