Sleep and cognitive performance of African-Americans and European-Americans before and during circadian misalignment produced by an abrupt 9-h delay in the sleep/wake schedule

PloS One
Gemma M PaechC I Eastman

Abstract

We conducted two studies of circadian misalignment in non-Hispanic African and European-Americans. In the first, the sleep/wake (light/dark) schedule was advanced 9 h, similar to flying east, and in the second these schedules were delayed 9 h, similar to flying west or sleeping during the day after night work. We confirmed that the free-running circadian period is shorter in African-Americans compared to European-Americans, and found differences in the magnitude and direction of circadian rhythm phase shifts which were related to the circadian period. The sleep and cognitive performance data from the first study (published in this journal) documented the impairment in both ancestry groups due to this extreme circadian misalignment. African-Americans slept less and performed slightly worse during advanced/misaligned days than European-Americans. The current analysis is of sleep and cognitive performance from the second study. Participants were 23 African-Americans and 22 European-Americans (aged 18-44 years). Following four baseline days (8 h time in bed, based on habitual sleep), the sleep/wake schedule was delayed by 9 h for three days. Sleep was monitored using actigraphy. During the last two baseline/aligned days and the fir...Continue Reading

References

Jul 1, 1973·Psychophysiology·E HoddesW C Dement
Jan 1, 1984·British Journal of Clinical Pharmacology·B M Stone
Sep 25, 1999·Behavior Research Methods, Instruments, & Computers : a Journal of the Psychonomic Society, Inc·H Stanislaw, N Todorov
Oct 3, 1999·Annals of Internal Medicine·N C NetzerK P Strohl
Dec 29, 2000·Chronobiology International·C I EastmanM Hebert
Oct 22, 2002·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Kenneth P WrightCharles A Czeisler
Feb 6, 2003·Journal of Biological Rhythms·Till RoennebergMartha Merrow
May 17, 2003·Sleep·Carl J StepnowskyJoel E Dimsdale
May 17, 2003·Sleep·Sonia Ancoli-IsraelCharles P Pollak
Jun 1, 1961·Archives of General Psychiatry·A T BECKJ ERBAUGH
May 25, 2004·Journal of Biological Rhythms·Valérie MongrainMarie Dumont
Jul 22, 2004·Nature Reviews. Genetics·Mark D Shriver, Rick A Kittles
Jun 3, 2006·American Journal of Epidemiology·Diane S LauderdaleKiang Liu
Nov 7, 2006·Current Biology : CB·A J DavidsonG D Block
Nov 23, 2006·Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists·Alison CernichJoseph Bleiberg
Apr 9, 2008·Journal of the National Medical Association·Joao NunesSamy I McFarlane
May 16, 2008·Psychosomatic Medicine·Elizabeth J MezickSteven E Reis
Oct 16, 2008·Epidemiology·Diane S LauderdalePaul J Rathouz
Feb 15, 2011·Sleep Medicine·Megan E RuiterKenneth L Lichstein
Jan 19, 2012·Behavioral Sleep Medicine·Yeonsu SongKatie L Stone
Jan 26, 2013·Sleep Medicine Reviews·Bosede AdenekanGirardin Jean-Louis
Aug 1, 2013·Progress in Molecular Biology and Translational Science·Namni GoelDavid F Dinges
Jul 22, 2015·Sleep·Namni Goel
Jan 13, 2017·International Journal of Breast Cancer·Freya R SchnabelAmber Guth
Mar 24, 2017·Journal of Sleep Research·Charmane I EastmanStephanie J Crowley

❮ Previous
Next ❯

Citations

Jun 26, 2018·Frontiers in Physiology·Rafael M FernandesRafael R Lima
Jan 1, 2021·Journal of Clinical Sleep Medicine : JCSM : Official Publication of the American Academy of Sleep Medicine·Daniel CombsSairam Parthasarathy
Apr 1, 2021·Annual Review of Biomedical Engineering·Yaakov Nahmias, Ioannis P Androulakis
Sep 23, 2021·Chronobiology International·Dayna A JohnsonKristen Knutson

❮ Previous
Next ❯

Software Mentioned

Philips Actiware -

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.