Navigation Links
Sleep Deprivation can Affect Competent Decision-making

A study finds that sleep deprivation can adversely affect a person’s decision-making at a gambling table by elevating the expectation of gains and making// light of one’s 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 decision s, 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.

Source-Eurekalert
'"/>




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:2/10/2016)... ... 2016 , ... Compliancy Group LLC is pleased to offer ... the country. The Guard was specifically designed to handle each element required for ... updates, and compliance coaching. , In addition to meeting the compliance needs of ...
(Date:2/10/2016)... ... February 10, 2016 , ... Emergency rooms provide emergency care to stabilize ... can leave patients with dental emergencies at risk of losing a tooth or their ... care. , Common dental emergencies include:, , Avulsed or ...
(Date:2/10/2016)... ... February 10, 2016 , ... Dr. ... office is now offering a variety of comprehensive procedures for facial enhancement. The ... facial volume restoration, lip enhancement and nasal reshaping. , As a result, ...
(Date:2/10/2016)... ... February 10, 2016 , ... Ongoing news of the ravages of ... (ALCA) to conduct a survey that takes a closer look at cases of TBI ... prevalence and causes of TBI among the aging population, and identifies the challenges associated ...
(Date:2/10/2016)... Indianapolis, IN (PRWEB) , ... February 10, 2016 ... ... employee benefits advisory organization, welcomes S.S. Nesbitt as the latest addition to its ... and has seven other locations throughout the Southeast, from Orlando to Huntsville and ...
Breaking Medicine News(10 mins):
(Date:2/10/2016)... , Feb. 10, 2016  LexisNexis® Risk ... technology, today announced the launch of LexisNexis ... solution that helps improve and optimize the quality ... of performance using severity-adjusted scores. By measuring provider ... critical solution to deliver better outcomes, improve the ...
(Date:2/10/2016)... Calif. , Feb. 10, 2016 /PRNewswire/ ... a synergistic confluence of various technologies that ... propositions, previously unavailable. These opportunities create a ... convergence, in turn, drives the development of ... scenario is characterized by technology convergences, which ...
(Date:2/10/2016)... 2016 Mast Therapeutics, Inc. (NYSE ... for sickle cell disease and heart failure, today announced ... units at a price to the public of $0.275 ... the Company,s common stock and one warrant to purchase ... exercise price of $0.42 per share. The warrants are ...
Breaking Medicine Technology: