Featured Research

from universities, journals, and other organizations

Sleep Deprivation Can Threaten Competent Decision-making

Date:
May 5, 2007
Source:
American Academy of Sleep Medicine
Summary:
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, according to scientists.

Gambling is a risky activity that can potentially result in the loss of a significant amount of money. A study published in the journal SLEEP 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 decisions, 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."

Article: "Sleep Deprivation Elevates Expectation of Gains and Attenuates Response to Losses Following Risky Decisions", Sleep, May 1, 2007.

Story Source:

The above story is based on materials provided by American Academy of Sleep Medicine. Note: Materials may be edited for content and length.


Cite This Page:

American Academy of Sleep Medicine. "Sleep Deprivation Can Threaten Competent Decision-making." ScienceDaily. ScienceDaily, 5 May 2007. <www.sciencedaily.com/releases/2007/05/070501075246.htm>.
American Academy of Sleep Medicine. (2007, May 5). Sleep Deprivation Can Threaten Competent Decision-making. ScienceDaily. Retrieved August 22, 2014 from www.sciencedaily.com/releases/2007/05/070501075246.htm
American Academy of Sleep Medicine. "Sleep Deprivation Can Threaten Competent Decision-making." ScienceDaily. www.sciencedaily.com/releases/2007/05/070501075246.htm (accessed August 22, 2014).

Share This




More Mind & Brain News

Friday, August 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Lost Brain Cells To Blame For Sleep Problems Among Seniors

Lost Brain Cells To Blame For Sleep Problems Among Seniors

Newsy (Aug. 21, 2014) According to a new study, elderly people might have trouble sleeping because of the loss of a certain group of neurons in the brain. Video provided by Newsy
Powered by NewsLook.com
Do More Wedding Guests Make A Happier Marriage?

Do More Wedding Guests Make A Happier Marriage?

Newsy (Aug. 20, 2014) A new study found couples who had at least 150 guests at their weddings were more likely to report being happy in their marriages. Video provided by Newsy
Powered by NewsLook.com
Charter Schools Alter Post-Katrina Landscape

Charter Schools Alter Post-Katrina Landscape

AP (Aug. 20, 2014) Nine years after Hurricane Katrina, charter schools are the new reality of public education in New Orleans. The state of Louisiana took over most of the city's public schools after the killer storm in 2005. (Aug. 20) Video provided by AP
Powered by NewsLook.com
Researcher Testing on-Field Concussion Scanners

Researcher Testing on-Field Concussion Scanners

AP (Aug. 19, 2014) Four Texas high school football programs are trying out an experimental system designed to diagnose concussions on the field. The technology is in response to growing concern over head trauma in America's most watched sport. (Aug. 19) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins