Navigation Links
Sleepiness Hampers Job Performance, Study Confirms
Date:8/3/2012

FRIDAY, Aug. 3 (HealthDay News) -- Regardless of how tired people think they are, not getting enough sleep can negatively affect their ability to perform certain tasks, sleep researchers have found.

A lack of sleep can make people slower than they would be if they slept for the recommended full eight hours, according to the results of a study at Brigham and Women's Hospital, in Boston.

"Our team decided to look at how sleep might affect complex visual search tasks, because they are common in safety-sensitive activities, such as air-traffic control, baggage screening and monitoring power plant operations," the study's senior author, Jeanne Duffy, an associate neuroscientist at Brigham and Women's, explained in a hospital news release.

"These types of jobs involve processes that require repeated, quick memory encoding and retrieval of visual information, in combination with decision making about the information," Duffy pointed out.

Over the course of one month, the researchers examined data on visual search tasks completed by 12 participants.

During the first week, all participants were instructed to sleep 10 to 12 hours each night to ensure they had enough rest. In the three weeks that followed, the participants got only about five and a half hours of sleep each night. They also faced effects similar to chronic jet lag because their sleep was scheduled on a 28-hour cycle.

The study participants performed visual search tests on a computer. The tests were timed so the researchers could evaluate the participants' accuracy as well as their speed in identifying important information.

Although the participants' accuracy was fairly consistent, the study revealed that the longer the participants were awake, the more slowly they completed the tasks.

The participants were also slower between the hours of midnight and 6:00 a.m. than they were during the day.

The effects of the sleep loss got worse and the participants got significantly slower as time went on, the investigators found. Despite performing their tasks much more slowly in the final weeks of the study, the participants reported feeling only slightly more sleepy. Because of this, the researchers concluded that people's perceptions of how tired they are do not always reflect their ability to perform certain tasks.

"This research provides valuable information for workers, and their employers, who perform these types of visual search tasks during the night shift, because they will do it much more slowly than when they are working during the day," Duffy said. "The longer someone is awake, the more the ability to perform a task, in this case a visual search, is hindered, and this impact of being awake is even stronger at night."

The study was published online July 26 in the Journal of Vision.

More information

The U.S. National Heart, Lung, and Blood Institute has more about sleep deprivation and deficiency.

-- Mary Elizabeth Dallas

SOURCE: Brigham and Women's Hospital, news release, July 27, 2012


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. CPAP treatment effective in patients with milder OSA and daytime sleepiness
2. Obesity, Depression Blamed for Daytime Sleepiness Epidemic
3. Obesity, depression found to be root causes of daytime sleepiness
4. 2 new studies show connection between sleepiness and pro-athlete careers
5. Excessive sleepiness may be cause of learning, attention and school problems
6. Poor Sleep Hampers Vaccine Effectiveness: Study
7. Childhood obesity linked to math performance, MU researcher says
8. College Students Who Use Tanning Beds Often Burn: Study
9. Playfulness may help adults attract mates, study finds
10. UT MD Anderson study finds link between depressive symptoms and cancer survival
11. Killer infections targeted by hospital study
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Sleepiness Hampers Job Performance, Study Confirms
(Date:4/21/2017)... ... 2017 , ... Dudnyk has announced the launch of its new brand identity, ... potential of specialty and orphan brands can only be achieved when the needs and ... Effect is at the heart of a true partnership between our agency and our ...
(Date:4/21/2017)... ... April 21, 2017 , ... Crossover Symmetry , ... , an active lifestyle company that provides Human Performance Training and education to ... offers, first responders, military officers and others in service through the development and ...
(Date:4/21/2017)... UK (PRWEB) , ... April 21, 2017 , ... ... for Enterprise in the category of International Trade, the UK’s most prestigious award ... international trade, which represents 95% of total revenues and has grown by a ...
(Date:4/21/2017)... ... ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh in Abilene, Texas, wrote an ... crisis with solution to peace plan. Yisrayl says war has never brought peace and he ... the Creator Himself. , Yisrayl says war drums are beating all over the media ...
(Date:4/21/2017)... ... 21, 2017 , ... Indiana Fiber Network, LLC (IFN), the ... to Tele-Media Solutions. IFN is delivering Multi-Gigabit data rates as an upstream ... protect transport with 3GB Dual Access Internet access now available in their service ...
Breaking Medicine News(10 mins):
(Date:4/19/2017)... YORK , April 19, 2017 Global ... drainage devices are tubes used to remove excess liquid ... blood, serum, pus, urine, bile or lymph. Surgical drains ... of surgery such as orthopedics surgery, cardiovascular surgery, neurosurgery, ... is prophylactic post-surgery to prevent accumulation of fluid e.g. ...
(Date:4/19/2017)... , April 19, 2017 The Global ... Forecast to 2022 report has covered and analysed the potential ... information on market size, shares and growth factors. The report ... challenges and opportunities in the global market. ... Browse 152 Tables and Figures, 6 Major ...
(Date:4/19/2017)...  New research provides evidence that an old drug may ... study released today that will be presented at the ... Boston , April 22 to 28, 2017. ... disease, the oral drug levodopa has long been considered the ... the disease progresses, the effects of the medication can partially ...
Breaking Medicine Technology: