Daytime Sleepiness Is Associated With Reduced Integration of Temporally Distant Outcomes on the Iowa Gambling Task.
Sleep deprivation is associated with performance decrements on some measures of executive functioning. For instance, sleep deprivation results in altered decision making on the Iowa Gambling Task. However, it is unclear which component processes of the task may be driving the effect. In this study, Iowa Gambling task performance was decomposed using the Expectancy-Valence model. Recent sleep debt and greater daytime sleepiness were associated with higher scores on the updating parameter, which reflects the extent to which recent experiences are emphasized over remote ones. Findings suggest that the effects of insufficient sleep on IGT performance are due to shortening of the time horizon over which decisions are integrated. These findings may have clinical implications in that individuals with sleep problems may not integrate more temporally distant information when making decisions.
a Harvard Medical School Center for Depression, Anxiety and Stress Research, McLean Hospital.
Elizabeth A
EA
Olson
a Harvard Medical School Center for Depression, Anxiety and Stress Research, McLean Hospital.
Mareen
M
Weber
a Harvard Medical School Center for Depression, Anxiety and Stress Research, McLean Hospital.
Scott L
SL
Rauch
a Harvard Medical School Center for Depression, Anxiety and Stress Research, McLean Hospital.|b Department of Psychiatry , University of Arizona.
William D S
WD
Killgore
D000293:Adolescent; D000328:Adult; D003657:Decision Making; D056344:Executive Function; D005260:Female; D005715:Gambling / Q000523:psychology*; D006801:Humans; D007484:Iowa; D008297:Male; D008875:Middle Aged; D012892:Sleep Deprivation / Q000523:psychology*; D012894:Sleep Stages; D013647:Task Performance and Analysis; D013997:Time Factors; D055815:Young Adult