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Aging-related changes on social synchronization of circadian activity rhythm in a diurnal primate (Callithrix jacchus)
(Taylor and Francis, 2020-06-23)
Circadian rhythms of locomotor activity and hippocampal clock genes expression are dampened in vitamin A-deficient rats
(Elsevier Inc, 2014-04)
The main external time giver is the day-night cycle; however, signals from feeding and the activity/rest cycles can entrain peripheral clocks, such as the hippocampus, in the absence of light. Knowing that vitamin A and ...
Development and pH sensitivity of the respiratory rhythm of fetal mice in vitro
(PERGAMON-ELSEVIER SCIENCE LTD, 2006)
In newborn and adult mammals, chemosensory drive exerted by CO2 and H+ provides an essential tonic input: without it the rhythm of respiration is abolished. It is not known, however, whether this chemosensory drive and the ...
Daily and annual circarhythms activity in the South American sea lion Otaria flavescens (Carnivora: Otariidae) at the central zone of Chile
(Universidad de Valparaíso. Facultad de Ciencias del Mar, 2001)
Daily rhythms of native Brazilians in summer and winter
(Pergamon-Elsevier Science LTDOxford, 2012)
Access to electricity, granting relative independence of human activity on the dark phase of the day, has been pointed out as an important cause for the absence of seasonal changes in the daily rhythms of humans living in ...
Foraging activity rhythms of dinoponera quadriceps (Hymenoptera: formicidae) in its natural environment
(Oxford University Press, 2014)
Melatonin and circadian rhythms in autism: Case report
(2017-04-21)
Among the most co-occurring conditions in autism spectrum disorders (ASD), there are sleep disorders which may exacerbate associated behavioral disorders and lead to intensification of existing autistic symptoms. Several ...
Local cortical activity of distant brain areas can phase-lock to the olfactory bulb’s respiratory rhythm in the freely behaving rat
(American Physiological Society, 2018)
© 2018 American Physiological Society. All rights reserved.An important unresolved question about neural processing is the mechanism by which distant brain areas coordinate their activities and relate their local processing ...
Serotonin and circadian rhythms
(Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio)Universidade de Brasília (UnB)Universidade de São Paulo (USP), 2010-12-01)
All mammal behaviors and functions exhibit synchronization with environmental rhythms. This is accomplished through an internal mechanism that generates and modulates biological rhythms. The circadian timing system, ...