CNS Structures Controlling Circadian Neuroendocrine and Activity Rhythms in Mammals

2015 ◽  
pp. 56-70
Author(s):  
I. Assenmacher ◽  
A. Szafarczyk ◽  
J. Boissin ◽  
G. Ixart
Keyword(s):  
Activity Rhythms

Monitoring activity rhythms ofEquus hemionusat watering holes by camera traps in Mount Kalamaili Ungulate Nature Reserve, Xinjiang

2014 ◽  
Vol 22 (6) ◽  
pp. 752
Author(s):  
Wu Hongpan ◽  
Chu Hongjun ◽  
Wang Yuan ◽  
Ma Jianwei ◽  
Ge Yan ◽  
...  
Keyword(s):  
Nature Reserve ◽  
Camera Traps ◽  
Activity Rhythms ◽  
Monitoring Activity

scholarly journals 0897 Low Stability In Rest Activity Rhythms Is Associated With Higher Suicidal Ideation In Adolescents With Bipolar Disorder

SLEEP ◽  
2019 ◽  
Vol 42 (Supplement_1) ◽  
pp. A360-A361
Author(s):  
Qianyi Chen ◽  
Peter Franzen ◽  
Tina Goldstein ◽  
Sarah Gratzmiller
Keyword(s):  
Bipolar Disorder ◽  
Suicidal Ideation ◽  
Activity Rhythms ◽  
Rest Activity

scholarly journals A Systematic Review of Evidence for a Role of Rest-Activity Rhythms in Dementia

2019 ◽  
Vol 10 ◽  
Author(s):  
Stephen F. Smagula ◽  
Swathi Gujral ◽  
Chandler S. Capps ◽  
Robert T. Krafty
Keyword(s):  
Systematic Review ◽  
Activity Rhythms ◽  
Rest Activity

753 The role of circadian activity rhythms in depressive symptoms among female nursing students

SLEEP ◽  
2021 ◽  
Vol 44 (Supplement_2) ◽  
pp. A293-A294
Author(s):  
Xin Zhang ◽  
Shih-Yu Lee
Keyword(s):  
Nursing Education ◽  
Depressive Symptoms ◽  
Nursing Students ◽  
Conceptual Model ◽  
Depression Scale ◽  
Psychological Problems ◽  
Circadian Activity ◽  
Activity Rhythms ◽  
Wrist Actigraphy ◽  
Insomnia Symptoms

Abstract Introduction Depression is prevalent among nursing students. Rumination and sleep-wake rhythms are associated to mental illness; however, no clear path has been found. This exploratory study aimed to examine the associations among circadian activity rhythms (CAR), rumination, and depressive symptoms in female nursing students; further, to test a hypothesized CAR conceptual model. Methods A total of 148 female nursing junior students in China completed a battery of questionnaires, including Athens Insomnia Scale (AIS), Ruminative Responses Scale (RRS), and Self-rating Depression Scale (SDS). Wrist actigraphy was used to collect total sleep time, CAR, and acrophase (time of the peak of the fitted activity curve). The path analysis was explored by using SPSS and AMOS. Results The mean age of the students was 20.64 years (SD = 0.86). About 58.8% of the participants were either mild or moderate depressed. About 93.9% of the students reported significant insomnia symptoms (AIS scores >6). Rumination was measured by the RRS (M= 2.01, SD = 0.54), and students scored higher in brooding than that of reflective pondering (2.07 vs. 1.95). The average of TST was 394.59 minutes (SD = 51.92). The CAR ranged from 0.40 to 0.98, with a mean of 0.75 (SD = 0.11). The acrophase ranged from 12:46 to 20:14 (median 16:30), with a later acrophase indicates of a more delayed circadian phase. The final model shows satisfactory fit (χ2= 2.238, p= .327); a better CAR can indirectly reduce depressive symptoms by directly reducing brooding (B = -1.149) and improving insomnia symptoms (B = -6.6443). Conclusion In order to prevent psychological problems of nursing students, ruminating and CAR should be part of health screening. The novel conceptual model provides a basis for reforming nursing education to prevent psychological problems. Support (if any) Chinese National Natural Science Foundation [71603279]

Rest-activity rhythms in emerging adults: implications for cardiometabolic health

2021 ◽  
pp. 1-14
Author(s):  
Elissa K. Hoopes ◽  
Melissa A. Witman ◽  
Michele N. D’Agata ◽  
Felicia R. Berube ◽  
Benjamin Brewer ◽  
...  
Keyword(s):  
Emerging Adults ◽  
Cardiometabolic Health ◽  
Activity Rhythms ◽  
Rest Activity

Entrainment of Activity Rhythms to Temperature Cycles in Diurnal Palm Squirrels

1998 ◽  
Vol 63 (2) ◽  
pp. 271-277 ◽  
Author(s):  
Shantha M.W Rajaratnam ◽  
Jennifer R Redman
Keyword(s):  
Activity Rhythms ◽  
Temperature Cycles

Cathemerality and Lunar Periodicity of Activity Rhythms in Owl Monkeys of the Argentinian Chaco

2006 ◽  
Vol 77 (1-2) ◽  
pp. 123-138 ◽  
Author(s):  
Eduardo Fernandez-Duque ◽  
Hans G. Erkert
Keyword(s):  
Lunar Periodicity ◽  
Activity Rhythms ◽  
Owl Monkeys

Circadian Activity Rhythms and Phase‐Shifting of Cultured Neurons of the Rat Suprachiasmatic Nucleus

2006 ◽  
Vol 23 (1-2) ◽  
pp. 181-190 ◽  
Author(s):  
Christopher Klisch ◽  
Sabine Mahr ◽  
Hilmar Meissl
Keyword(s):  
Suprachiasmatic Nucleus ◽  
Phase Shifting ◽  
Cultured Neurons ◽  
Circadian Activity ◽  
Activity Rhythms
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