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CONTEXT An association between dopamine-replacement therapies and impulse control disorders (ICDs) in Parkinson disease (PD) has been suggested in preliminary studies. OBJECTIVES To ascertain point prevalence estimates of 4 ICDs in PD and examine their associations with dopamine-replacement therapies and other clinical characteristics. DESIGN(More)
BACKGROUND Cognitive behavioral and related therapies for cocaine dependence may exert their effects, in part, by enhancing cognitive control over drug use behavior. No prior studies have systematically examined the neural correlates of cognitive control as related to treatment outcomes for cocaine dependence. METHODS Twenty treatment-seeking(More)
RATIONALE Dopaminergic medication-related impulse control disorders (ICDs) such as pathological gambling and compulsive shopping have been reported in Parkinson's disease (PD). HYPOTHESIS We hypothesized that dopamine agonists (DAs) would be associated with greater impulsive choice or greater discounting of delayed rewards in PD patients with ICDs (PDI).(More)
OBJECTIVE To assess factors associated with impulse control disorders (ICDs) in Parkinson disease (PD) using a multicenter case--control design. METHODS Patients enrolled in the DOMINION study, a multicenter study assessing the cross-sectional frequency of ICDs in PD, were eligible to participate in the case--control study. PD patients with and without an(More)
Failures in cortical control of fronto-striatal neural circuits may underpin impulsive and compulsive acts. In this narrative review, we explore these behaviors from the perspective of neural processes and consider how these behaviors and neural processes contribute to mental disorders such as obsessive-compulsive disorder (OCD), obsessive-compulsive(More)
PURPOSE OF REVIEW A range of impulse control and repetitive behaviors presumed to be related to dopaminergic medications has been recognized in Parkinson's disease. These behaviors are linked by their incentive or reward-based and repetitive natures and overlap with addictions. The behaviors include pathological gambling, hypersexuality, compulsive(More)
BACKGROUND Gambling urges in pathological gambling (PG) often immediately precede engagement in self-destructive gambling behavior. An improved understanding of the neural correlates of gambling urges in PG would advance our understanding of the brain mechanisms underlying PG and would help direct research into effective treatments. METHODS Echoplanar(More)
A range of impulse control disorders (ICDs) are reported to occur in Parkinson's disease (PD). However, alterations in brain activity at rest and during risk taking occurring with ICDs in PD are not well understood. We used both arterial spin labeling perfusion functional magnetic resonance imaging (fMRI) to directly quantify resting cerebral blood flow(More)
OBJECTIVE Epidemiological studies indicate that experimentation with addictive drugs and onset of addictive disorders is primarily concentrated in adolescence and young adulthood. The authors describe basic and clinical data supporting adolescent neurodevelopment as a biologically critical period of greater vulnerability for experimentation with substances(More)
OBJECTIVE To determine the frequency and correlates of impulse control disorders (ICDs) in Parkinson disease (PD). DESIGN An unstructured screening interview for ICDs (compulsive gambling, buying, and sexual behavior) followed by a telephone-administered structured interview for screen-positive patients. SETTING Two university-affiliated movement(More)