Navigation Links
Sleep Deprivation can Affect Competent Decision-making

A study finds that sleep deprivation can adversely affect a persons decision-making at a gambling table by elevating the expectation of gains and making light of ones losses following risky decisions.

To understand the neural underpinnings of risky decision making under conditions of sleep deprivation, Vinod Venkatraman and colleagues of Duke University studied healthy volunteers as they underwent functional magnetic resonance imaging (fMRI), the use of MRI to measure the haemodynamic response related to neural activity in the brain or spinal cord of humans.

The authors found that the nucleus accumbens, an area in the brain involved with the anticipation of reward, becomes selectively more active when high risk-high payoff choices were made under conditions of sleep deprivation. Further, the number of high risk decisions did not increase with sleep deprivation, but the expectation of being rewarded for making the high risk gamble was elevated. Allied to this finding was the observation that there was an attenuated response to losses in the insula, a part of the brain involved with evaluating the emotional significance of an event.

According to the authors, the new findings build on prior research that has shown that sleep-deprived participants choose higher-risk decks and exhibit reduced concern for negative consequences when performing a variant of the Iowa Gambling Task. While well-rested participants learn to avoid high-risk decks and to choose from the advantageous decks, sleep-deprived participants tend to continue to choose from the risky decks as the game progresses.

Michael W.L. Chee, one of the authors of the study, noted that disadvantageous decisions were not actually made, but the brain showed response patterns suggesting that going down that path might be the next step. Herein lies the added value of brain imaging potentially being able to foretell the likelihood of making disadvantageous deci sions, added Chee.

"Most of us know of people who have stayed up all night on a gambling table, taking crazy risks that did not make sense and who lost more than they had because they did not walk out when it was sensible to," said Chee. "Understanding why we make poorer choices when sleep deprived is important not only because of the increasing numbers of persons affected, but also because there exist today unprecedented opportunities to incur damaging losses by means such as online gambling. This work is one of many evaluating the neural correlates of decision making but the first to apply such methods to sleep deprived individuals."

Experts recommend that adults get between seven and eight hours of sleep each night to maintain good health and optimum performance.

Those who think they might have a sleep disorder are urged to discuss their problem with their primary care physician, who will issue a referral to a sleep specialist.


'"/>




Related medicine news :

1. Sleep apnoea increases post-operative risks
2. Sleep, snoring....stroke
3. Sleeping sickness - a silent killer
4. Deep Sleep Doesnt Increase Memory
5. Sleepwalking has genetic roots
6. Sleepy drivers increase road death toll
7. Sleep apnoea linked to surgical risks
8. Sleep disorders can have anomalistic sexual acts
9. Sleepwalking linked to a gene
10. Sleep Apnea Linked to Bed-Wetting in Kids
11. Race Affects Sleep in Children
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/8/2016)... ... February 08, 2016 , ... ... states in the U.S. require dental technicians to be certified or obtain continuing ... industry, NADL created the “What’s In Your Mouth?” campaign to inform dentists and ...
(Date:2/7/2016)... ... February 07, 2016 , ... Women's Excellence staff, in all four locations, wore ... Wear Red Day is the first Friday each February and a day to bring ... in 3 deaths among women each year – more than all cancers combined. Go ...
(Date:2/7/2016)... ... 2016 , ... Dr. Todd Hobgood , certificated in ... surgical expertise. Technically known as deoxycholic acid or previously as ATX-101, Kybella® ... for reduction of fat below the chin (aka the “double chin”). Medication side ...
(Date:2/6/2016)... ... ... US Sports Camps is proud to sponsor the Bay Area Disc Association's ... leaders, ultimate organizations, and coaches from around the US. The theme for this year’s ... of Youth and Education, describes this year YUCC as “an important conversation we must ...
(Date:2/6/2016)... , ... February 06, 2016 , ... Shark Finds ... announce the launch of a new DRTV campaign with Belly Bands. , Having a ... everything from sprays to puppy pads and find nothing works, get Belly Bands, ...
Breaking Medicine News(10 mins):
(Date:2/8/2016)... Feb. 8, 2016   GS1 US will ... guide them through GS1 Standards implementation to address the ... Unique Device Identification (UDI) rule. Scott ... Beth Gibson , senior director industry development, medical devices, ... director, GS1 US --> Scott ...
(Date:2/8/2016)... Feb. 8, 2016 Nueterra, the ... specialized in the development of equity partnerships ... it has divided its interests between two ... Capital will continue the founding company,s private ... operate a national system of integrated provider ...
(Date:2/8/2016)... Pa. , Feb. 8, 2016   ... November Research Group (NRG),s pharmacovigilance technology services ... system-related consulting services and an Oracle Argus Specialized ... services to Life Sciences companies. ... and expands HighPoint,s life sciences capabilities and provides ...
Breaking Medicine Technology: