Navigation Links
Morning grogginess more debilitating than sleep deprivation, according to CU-Boulder study

A new University of Colorado at Boulder study shows that people who awaken after eight hours of sound sleep have more impaired thinking and memory skills than they do after being deprived of sleep for more than 24 hours.

The study showed test subjects had diminished short-term memory, counting skills and cognitive abilities during the groggy period upon awakening known as sleep inertia, said CU-Boulder Assistant Professor Kenneth Wright, lead study author. The new study has implications for medical, safety and transportation workers who are often called upon to perform critical tasks immediately after waking, since cognitive deficiencies following 24 hours of sleep deprivation have previously been shown to be comparable to the effects of alcohol intoxication, he said.

The study appears in the Jan. 11 issue of the Journal of the American Medical Association. Study authors included Wright and Adam Wertz of CU-Boulder's integrative physiology department and Joseph Ronda and Charles Czeisler of Brigham and Women's Hospital in Boston, which is affiliated with Harvard Medical School.

"This is the first time anyone has quantified the effects of sleep inertia," Wright said. "We found the cognitive skills of test subjects were worse upon awakening than after extended sleep deprivation. For a short period, at least, the effects of sleep inertia may be as bad as or worse than being legally drunk."

Following six nights of monitored sleep lasting eight hours per night, the study participants were given a performance test that involved adding randomly generated, two-digit numbers, said Wright. Based on the results, the researchers concluded the subjects exhibited the most severe impairments from sleep inertia within the first three minutes after awakening, he said.

The most severe effects of sleep inertia generally dissipated within the first 10 minutes, although its effects are often detectable for up to two hours, according to the stu
'"/>

Source:University of Colorado at Boulder


Page: 1 2 3

Related biology news :

1. Wisconsin researchers identify sleep gene
2. Brain-mapping technique aids understanding of sleep, wakefulness
3. Newly discovered protein an important tool for sleeping sickness research
4. Compound might defeat African sleeping sickness, clinical trial beginning this month
5. Deep sleep short-circuits brains grid of connectivity
6. Flies on speed offer insight into the roles of dopamine in sleep and arousal
7. Asleep in the deep: Model helps assess ocean-injection strategy for combating greenhouse effect
8. Waking a sleeping virus
9. Losing sleep undoes the rejuvenating effects new learning has on the brain
10. A large step forward in the fight against African sleeping sickness
11. Serotonin, acting in a specific brain region, promotes sleep in fruit flies
Post Your Comments:
(Date:9/18/2014)... fall foliage season that prompts millions of Americans to undertake ... and possibly last a little longer within a century, according ... peeping in some areas of the United States as summer ... in the journal Global Ecology and Biogeography . For ... is the state tree of New Hampshire could change ...
(Date:9/18/2014)... ALEXANDRIA, Va.Sept. 18, 2014Many Americans across racial and ... the greatest impact on their day-to-day life, more ... memory, hearing and speech (57% of African-Americans, 49% ... of Hispanics). When asked which disease or ailment ... blindness ranked first among African-Americans followed by AIDS/HIV. ...
(Date:9/18/2014)... 18, 2014 Elsevier, a world-leading provider of ... and the Australasian Research Management Society (ARMS), recognized ... at the 5th Scopus Young Researcher of the ... today at the National Convention Centre and in ... attended by guests representing Australia,s and New Zealand,s ...
Breaking Biology News(10 mins):Fall foliage season may be later, but longer on warmer Earth 2Fall foliage season may be later, but longer on warmer Earth 3Fall foliage season may be later, but longer on warmer Earth 4Americans rate losing eyesight as having greatest impact on their lives 2Americans rate losing eyesight as having greatest impact on their lives 3Elsevier and Australasian Research Management Society award scientists at Scopus ceremony 2
... are atmospheric materials so small that they can,t be seen with ... patterns and human health all over the world and not ... of researchers at Texas A&M University. , Researchers Renyi Zhang, Alexei ... the Departments of Atmospheric Sciences and Chemistry say that nanoparticles appear ...
... St. Louis, MO, March 1, 2010 2009 estimates ... of ovarian cancer would be diagnosed and 14,600 women would ... ovarian cancer has an asymptomatic onset and a relatively low ... survivorship is critical. A study published in the March 2010 ...
... Between 5 and 10 percent of babies with Down syndrome ... its own. However, for reasons that haven,t been clear, 20 ... serious leukemia known as Down syndrome acute megakaryoblastic leukemia (DS-AMKL), ... cells and platelets. Now, researchers at Children,s Hospital Boston have ...
Cached Biology News:Atmospheric nanoparticles impact health, weather professor says 2Dietary factors influence ovarian cancer survival rates 2Key player found for a cancer typical in Down syndrome 2Key player found for a cancer typical in Down syndrome 3
(Date:9/19/2014)... , September 19, 2014 The ... Spain , available today on PharmaBoardroom.com ... the Eurozone crisis that rocked the Spanish economy in 2009, ... Spanish pharma community has remained pragmatic in times of trouble. ... is still the fifth biggest European market, and the general ...
(Date:9/18/2014)... A novel robotic system that can operate inside ... tested as part of a biomedical research partnership program ... aim of determining if the robot, in conjunction with ... more accurate, less costly, and less discomforting for the ... deliver prostate cancer therapies with greater precision. , Developed ...
(Date:9/18/2014)... DUBLIN , Sept. 18, 2014 ... the "Global and Chinese Stem Cell Industry Report, ... Stem cells are undifferentiated biological cells that can differentiate ... produce more stem cells. Stem cell therapy can be ... of hematological system disease), nervous system diseases, damage or ...
(Date:9/18/2014)... 18, 2014  U.S. biotech company Kultevat ... license for technology developed by the Donald Danforth ... plants, including for applications in production of natural rubber ... technology was developed under the direction of Roger ... former president of the Danforth Plant Science Center, and ...
Breaking Biology Technology:PharmaBoardroom Releases New Spain Pharmaceuticals Report 2PharmaBoardroom Releases New Spain Pharmaceuticals Report 3Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 2Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 3Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 4Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 5Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 6Global and Chinese Stem Cell Industry Report, 2014-2017 2Global and Chinese Stem Cell Industry Report, 2014-2017 3Kultevat obtains license of gene switch technology 2
... Hi-Bred Biotechnology Leadership ... at Beijing Ag Summit, ... public and private sectors will help increase,farm productivity in the country ... vice president -- DuPont Crop,Genetics Research and Development, told attendees at ...
... 25 IDEXX,Laboratories, Inc. (Nasdaq: IDXX ), today ... 18% to $249.1 million from $211.2 million,for the first ... the,quarter ended March 31, 2008 were $0.43, compared to ... adjusted diluted EPS for the first,quarter grew 21% to ...
... (Nasdaq: KOSN ) will announce its first quarter ... close., The announcement of Kosan,s first quarter 2008 ... live webcast on May 1, 2008 at 1:30,p.m. Pacific ... live,call by dialing 888.680.0878 (US) or 617.213.4855 (international), access,code ...
Cached Biology Technology:DuPont Partnering with China to Increase Farm Productivity 2DuPont Partnering with China to Increase Farm Productivity 3IDEXX Laboratories Announces First Quarter Results 2IDEXX Laboratories Announces First Quarter Results 3IDEXX Laboratories Announces First Quarter Results 4IDEXX Laboratories Announces First Quarter Results 5IDEXX Laboratories Announces First Quarter Results 6IDEXX Laboratories Announces First Quarter Results 7IDEXX Laboratories Announces First Quarter Results 8IDEXX Laboratories Announces First Quarter Results 9IDEXX Laboratories Announces First Quarter Results 10IDEXX Laboratories Announces First Quarter Results 11IDEXX Laboratories Announces First Quarter Results 12IDEXX Laboratories Announces First Quarter Results 13IDEXX Laboratories Announces First Quarter Results 14IDEXX Laboratories Announces First Quarter Results 15IDEXX Laboratories Announces First Quarter Results 16IDEXX Laboratories Announces First Quarter Results 17Kosan Announces May 1, 2008 Conference Call and Webcast of First Quarter 2008 Financial Results 2
... Pocket Surveyor software provides local instrument ... Surveyor HPLC Systems. The software operates ... popular Windows Pocket PC 2002 O/S ... connect directly to their Surveyor quaternary ...
Reported to support murine B lymphocytes, hematopoietic tissue from bone marrow, B cells stimulated with lipopolysaccharide, T lymphocytes, and a variety of hybrid cells....
... Many modifications of Eagle's ... the original formulation. The most ... Modified Eagle's,Medium. DME is a ... Eagle [MEM] that contains a ...
... is a fixative useful for routine procedures. ... is stable and will decalcify small bone ... can be stained successfully with most stains, ... stabilizes red blood cell membranes and cosinophil ...
Biology Products: