The role of impulsivity in the development of substance use and eating disorders.
Impulsivity is now widely viewed as a multidimensional construct consisting of a number of related dimensions. Although many measures of impulsivity are correlated, most recent factor analyses support at least a two-factor model. In the current paper, these two factors have been labelled reward sensitivity, reflecting one of the primary dimensions of Gray's personality theory, and rash-spontaneous impulsiveness. The evidence supporting the existence of two dimensions of impulsivity is reviewed in relation to substance misuse and binge eating.
Dawe
Sharon
S
School of Applied Psychology, Griffith University, Brisbane, Qld. 4111, Australia. s.dawe@mailbox.gu.edu.au
Loxton
Natalie J
NJ
D000818:Animals; D002032:Bulimia / Q000209:etiology / Q000523:psychology*; D006801:Humans; D007175:Impulsive Behavior / Q000150:complications / Q000523:psychology*; D012054:Reinforcement, Psychology; D019966:Substance-Related Disorders / Q000209:etiology / Q000523:psychology*