Name:
Publisher version
View Source
Access full-text PDFOpen Access
View Source
Check access options
Check access options
Affiliation
School of Psychology, Trinity College Dublin, Dublin, Ireland. broganam@tcd.ieIssue Date
2011-02MeSH
AdultAged
Body Mass Index
Case-Control Studies
Decision Making
Eating Disorders
Female
Humans
Impulsive Behavior
Male
Middle Aged
Obesity, Morbid
Psychiatric Status Rating Scales
Psychological Tests
Questionnaires
Metadata
Show full item recordCitation
Impaired decision making among morbidly obese adults. 2011, 70 (2):189-96 J Psychosom ResJournal
Journal of psychosomatic researchDOI
10.1016/j.jpsychores.2010.07.012PubMed ID
21262422Abstract
The Iowa Gambling Task (IGT) measures affective decision making and has revealed decision making impairments across a wide range of eating disorders. This study aimed to investigate affective decision making in severely obese individuals.Forty-two (12 male, 30 female) morbidly obese participants (mean BMI = 41.45) and 50 comparison participants (17 male, 33 female) matched for age, gender and education, completed the IGT.
Obese participants performed significantly worse on the IGT compared to the comparison group, with 69% of the obese group demonstrating clinically impaired decision making. There was no evidence of learning across the five trial blocks in obese participants, with significant differences between the groups emerging in blocks 3, 4, and 5. IGT impairment was unrelated to BMI or eating pathology.
Obese participants were significantly impaired on the IGT. The pattern of performance suggested a potential inability to maximise an immediate reward or program a delayed reward. The findings support the view that common decision making impairments exist across disordered eating populations. Future research is required to specify the source and mechanisms of these decision making deficits. The logical progression of this research is the development of interventions which improve decision making capacity and measure subsequent impact on psychological and physical outcomes.
Item Type
ArticleLanguage
enISSN
1879-1360ae974a485f413a2113503eed53cd6c53
10.1016/j.jpsychores.2010.07.012
Scopus Count
Collections
Related articles
- Decision-making impairments in women with binge eating disorder in comparison with obese and normal weight women.
- Authors: Danner UN, Ouwehand C, van Haastert NL, Hornsveld H, de Ridder DT
- Issue date: 2012 Jan
- Psychosocial predictors of weight loss after bariatric surgery.
- Authors: Kinzl JF, Schrattenecker M, Traweger C, Mattesich M, Fiala M, Biebl W
- Issue date: 2006 Dec
- Altered adaptive but not veridical decision-making in substance dependent individuals.
- Authors: Verdejo-García A, Vilar-López R, Pérez-García M, Podell K, Goldberg E
- Issue date: 2006 Jan
- The effects of psychiatric distress, inhibition, and impulsivity on decision making in patients with substance use disorders: A matched control study.
- Authors: van Toor D, Roozen HG, Evans BE, Rombout L, Van de Wetering BJ, Vingerhoets AJ
- Issue date: 2011 Feb
- Decision-making and impulsivity in eating disorder patients.
- Authors: Garrido I, Subirá S
- Issue date: 2013 May 15