PSYCH101 Chapter Notes - Chapter 5: Suprachiasmatic Nucleus, Circadian Rhythm, Jet Lag

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

Document Summary

Consciousness: is a person"s subjective awareness, including thoughts, perceptions, experiences of the world and self-awareness. Infradian rhythm: any rhythm that occurs over a period of time longer than a day: ex. Circadian rhythms: are internally driven daily cycles of approx. Suprachiasmatic nucleus (scn): communicates signals about light levels with the pineal gland. Entrainment: when biological rhythms become synchronized to external cues such as light, temperature, or even a clock. Endogenous rhythms: biological rhythms that are generated by our body independent of external cues such as light. Polysomnography: a set of objective measurements use to examine physiological variables during sleep. Eeg: a device that measures brain waves using sensors attached to the scalp. Rem sleep: a stage of sleep characterized by quickening brain waves, inhibited body movement, and rapid eye movements (rem) The first 4 stages are known as non-rem sleep (nrem)