PSYC 401 Lecture Notes - Lecture 9: Circadian Rhythm, Zeitgeber, Sleep Paralysis
Document Summary
Endogenous cycles generated from internal biological mechanisms. Circannual rhythms cycles that occur on a season basis. Migration patterns of birds and other animals. Circadian rhythms about a day approximately 24 hours b/c of rotation of. Circadian oscillation of body temperature: body temperature varies (rises and falls) based on time of day, sleep. Body temperature: lowest typically right before wake up in morning, highest during day, falls before sleep at night correlation. External (exogenous) mechanisms external factors that influence. Zeitgeber time-giver - an external mechanism that resets a biological. Light is the primary zeitgeber for land animals clock . Human sleep/wake cycle the human sleep/wake cycle does not follow a. 24-hour day if no external cues are present. Free-running cycle in the absence of cues for sunrise and sunset, humans follow a sleep/wake cycle greater than 24 hours -- when light cues are present,
