Look up infradian in Wiktionary, the free dictionary.
In chronobiology, an infradian rhythm is a rhythm with a period longer than the period of a circadian rhythm, i.e., with a frequency of less than one cycle in 24 hours.[1] Some examples of infradian rhythms in mammals include menstruation, breeding, migration, hibernation, molting and fur or hair growth, and tidal or seasonal rhythms. In contrast, ultradian rhythms have periods shorter than the period of a circadian rhythm. Several infradian rhythms are known to be caused by hormone stimulation or exogenous factors. For example, seasonal depression, an example of an infradian rhythm occurring once a year, can be caused by the systematic lowering of light levels during the winter.[2]
infradian, rhythm, look, infradian, wiktionary, free, dictionary, chronobiology, infradian, rhythm, rhythm, with, period, longer, than, period, circadian, rhythm, with, frequency, less, than, cycle, hours, some, examples, infradian, rhythms, mammals, include, . Look up infradian in Wiktionary the free dictionary In chronobiology an infradian rhythm is a rhythm with a period longer than the period of a circadian rhythm i e with a frequency of less than one cycle in 24 hours 1 Some examples of infradian rhythms in mammals include menstruation breeding migration hibernation molting and fur or hair growth and tidal or seasonal rhythms In contrast ultradian rhythms have periods shorter than the period of a circadian rhythm Several infradian rhythms are known to be caused by hormone stimulation or exogenous factors For example seasonal depression an example of an infradian rhythm occurring once a year can be caused by the systematic lowering of light levels during the winter 2 See also editPhotoperiodicityReferences edit Brown Frederick M amp Graeber R Curtis eds The Rhythmic Aspects of Behavior Hillsdale NJ Lawrence Erlbaum Associates 1982 p 462 Infradian and ultradian rhythms for A level psychology Psychteacher www psychteacher co uk Archived from the original on 2015 02 28 nbsp This biology article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Infradian rhythm amp oldid 1095331266, wikipedia, wiki, book, books, library,
