Article

Subjective self-control and behavioural impulsivity coexist in anorexia nervosa.

Department of Psychology, University of Greenwich, Eltham, London SE9 2UG, UK.
Eating Behaviors (impact factor: 1.58). 07/2005; 6(3):221-7. DOI:10.1016/j.eatbeh.2004.11.002 pp.221-7
Source: PubMed

ABSTRACT Anorexia nervosa (AN) has been associated with impulse regulation problems. This study investigated subjective and behavioural impulsivity in women with anorexia nervosa (n=15) and a control group (n=16).
A self-report measure (the impulsiveness, venturesomeness, and empathy questionnaire; I(7)) and two behavioural measures (a continuous performance task [CPT]; and a novel risk taking measure [Bets 16]) of impulsivity were used along with the Beck Depression Inventory (BDI).
The AN group had elevated BDI scores and lower self-reported impulsiveness and venturesomeness scores, but they also displayed impulsive behaviour on the CPT (more errors of commission with faster reaction times).
The coexistence, in AN, of self-reported self-control and behavioural impulsivity indicates that the relationship between impulsivity and disordered eating in AN is more complex than previously recognised and supports the view that self-awareness in AN is low.

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Keywords

anorexia nervosa
 
Beck Depression Inventory
 
behavioural impulsivity
 
behavioural measures
 
continuous performance task [CPT]
 
empathy questionnaire
 
impulse regulation problems
 
impulsive behaviour
 
impulsiveness
 
impulsivity
 
lower self-reported impulsiveness
 
reaction times
 
self-awareness
 
self-report measure
 
self-reported self-control
 
subjective
 
venturesomeness
 
venturesomeness scores
 

G.K.L. Butler