"Activity Cycles" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
Bouts of physical irritability or movement alternating with periods of quiescence. It includes biochemical activity and hormonal activity which may be cellular. These cycles are shorter than 24 hours and include sleep-wakefulness cycles and the periodic activation of the digestive system.
Concept/Terms
Activity Cycles- Activity Cycles
- Activity Cycle
- Cycle, Activity
- Cycles, Activity
Ultradian Cycles- Ultradian Cycles
- Cycle, Ultradian
- Cycles, Ultradian
- Ultradian Cycle
Below are MeSH descriptors whose meaning is more general than "Activity Cycles".
Below are MeSH descriptors whose meaning is more specific than "Activity Cycles".
This graph shows the total number of publications written about "Activity Cycles" by people in Harvard Catalyst Profiles by year, and whether "Activity Cycles" was a major or minor topic of these publication.
To see the data from this visualization as text,
click here.
| Year | Major Topic | Minor Topic | Total |
|---|
| 1994 | 0 | 1 | 1 |
| 1997 | 0 | 2 | 2 |
| 1998 | 1 | 1 | 2 |
| 2000 | 1 | 0 | 1 |
| 2001 | 1 | 1 | 2 |
| 2002 | 2 | 0 | 2 |
| 2003 | 1 | 0 | 1 |
| 2007 | 1 | 2 | 3 |
| 2009 | 0 | 1 | 1 |
| 2010 | 1 | 0 | 1 |
| 2012 | 1 | 0 | 1 |
| 2013 | 1 | 1 | 2 |
| 2014 | 1 | 1 | 2 |
| 2015 | 1 | 1 | 2 |
| 2018 | 1 | 0 | 1 |
| 2019 | 2 | 1 | 3 |
| 2021 | 1 | 0 | 1 |
Below are the most recent publications written about "Activity Cycles" by people in Profiles.
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Robust stability of melatonin circadian phase, sleep metrics, and chronotype across months in young adults living in real-world settings. J Pineal Res. 2021 Apr; 70(3):e12720.
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Equation representing the dark-entrained transition from inaction to action in male and female mice. Behav Brain Res. 2020 08 17; 392:112673.
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Estimating Representative Group Intrinsic Circadian Period from Illuminance-Response Curve Data. J Biol Rhythms. 2020 04; 35(2):195-206.
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Application of a Limit-Cycle Oscillator Model for Prediction of Circadian Phase in Rotating Night Shift Workers. Sci Rep. 2019 07 30; 9(1):11032.
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Evaluating causal associations between chronotype and fatty acids and between fatty acids and type 2 diabetes: A Mendelian randomization study. Nutr Metab Cardiovasc Dis. 2019 11; 29(11):1176-1184.
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Chronotype differences in cortical thickness: grey matter reflects when you go to bed. Brain Struct Funct. 2018 Sep; 223(7):3411-3421.
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Evening types demonstrate reduced SSRI treatment efficacy. Chronobiol Int. 2018 08; 35(8):1175-1178.
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The psychiatry of light. Harv Rev Psychiatry. 2015 May-Jun; 23(3):188-94.
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Associations of the 24-h activity rhythm and sleep with cognition: a population-based study of middle-aged and elderly persons. Sleep Med. 2015 Jul; 16(7):850-5.
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Biological time series analysis using a context free language: applicability to pulsatile hormone data. PLoS One. 2014; 9(9):e104087.