[ Back to EurekAlert! ] Public release date: 10-Feb-2010
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Contact: Graeme Baldwin
graeme.baldwin@biomedcentral.com
44-020-319-22165
BioMed Central

Self-control impaired in type 2 diabetics

Type-2 diabetes, an increasingly common complication of obesity, is associated with poor impulse control. Researchers writing in BioMed Central's open access journal BioPsychoSocial Medicine suggest that neurological changes result in this inability to resist temptation, which may in turn exacerbate diabetes.

Hiroaki Kumano, from Waseda University, Japan, worked with a team of researchers to assess response inhibition, a measure of self-control, in 27 patients with type-2 diabetes and 27 healthy controls. He said, "Patients with type 2 diabetes are required to make strict daily decisions; for example, they should resist the temptation of high-fat, high-calorie food, which is frequently cued by specific people, places and events. Appropriate behavior modification thus depends on the patient's ability to inhibit impulsive thoughts and actions cued by these environmental stimuli".

In order to gauge the patients' ability to resist such impulsive behavior, the researchers used a test in which participants had to quickly press a button in response to the correct signal on a computer screen, while pressing the button in response to the wrong symbol counted against their score. They found that patients with diabetes performed significantly worse at the test, suggesting that they struggled to control the impulse to press the button. Other results showed that the inhibitory failure observed in diabetic patients was mainly explained by cognitive impairment of impulsivity control, rather than by deficits in motor performance, error monitoring and adjustment. According to Kumano, "This suggests the possibility that the neuropsychological deficits in response inhibition may contribute to the behavioral problems leading to chronic lifestyle-related diseases, such as type 2 diabetes".

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Notes to Editors

  1. Decreased response inhibition in middle-aged male patients with type 2 diabetes
    Kaya T Ishizawa, Hiroaki Kumano, Atsushi Sato, Hiroshi Sakura and Yasuhiko Iwamoto
    BioPsychoSocial Medicine (in press)

    During embargo, article available here: http://www.bpsmedicine.com/imedia/3045456233062421_article.pdf?random=494302

    After the embargo, article available at journal website: http://www.bpsmedicine.com/

    Please name the journal in any story you write. If you are writing for the web, please link to the article. All articles are available free of charge, according to BioMed Central's open access policy.

    Article citation and URL available on request at press@biomedcentral.com on the day of publication

  2. BioPsychoSocial Medicine is an open access, peer-reviewed online journal that encompasses all aspects of the interrelationships between the biological, psychological, social, and behavioral factors of health and illness.

  3. BioMed Central (http://www.biomedcentral.com/) is an STM (Science, Technology and Medicine) publisher which has pioneered the open access publishing model. All peer-reviewed research articles published by BioMed Central are made immediately and freely accessible online, and are licensed to allow redistribution and reuse. BioMed Central is part of Springer Science+Business Media, a leading global publisher in the STM sector.



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