Biological rhythms 0.0 / 5 ? PsychologyBiopsychologyA2/A-levelAQA Created by: Former MemberCreated on: 04-05-19 20:26 Circadian rhythms A type of biological rhythm subject to a 24 hour cycle eg the sleep/wake cycle 1 of 6 Infradian rhythms A type of biological rhythm with a frequency of less than one cycle in 24 hours eg menstrual cycle and seasonal affective disorder 2 of 6 Ultradian rhythms A type of biological rhythm with a frequency of more than one cycle in 24 hours eg the stages of sleep 3 of 6 Biological rhythms Distinct patterns of changes in body activity that conform to cyclical time periods - influenced by endogenous pacemakers and exogenous zeitgebers 4 of 6 Endogenous pacemakers Internal body clocks that regulate many biological rhythms eg the suprachiasmatic nucleus 5 of 6 Exogenous zeitgebers External cues that affect/entrain our biological rhythms eg light 6 of 6
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