Biological rhythms 0.0 / 5 ? PsychologySleepA2/A-levelAQA Created by: JasismoranCreated on: 07-01-16 18:29 Biological Rhythms An innate, cyclical biological process. 1 of 8 Circadian Rhythms Bodily cycles that occur every 24 hrs. 2 of 8 Infradian Rhythms Bodily cycles that occur less frequently than 24 hrs. 3 of 8 Ultradian Rhythms Bodily cycles that occur several times a day. 4 of 8 Endogenous Pacemaker Internal body clock 5 of 8 Exogenous Zeitgeber German for 'time-giver', external stimuli that affect biological rhythms 6 of 8 Free Running Biological rhythms are not affected by exogenous zeitgebers. 7 of 8 Entrainment The process of resetting the biological clock w/ exogenous zeitgebers. 8 of 8
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