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Excessive hoarding in Parkinson's disease

Authors

  • Sean S. O'Sullivan MRCPI,

    Corresponding author
    1. Reta Lila Weston Institute of Neurological Studies, University College London, United Kingdom
    • Reta Lila Weston Institute of Neurological Studies, UCL, 1 Wakefield Street, London WC1N 1PJ, United Kingdom
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  • Atbin Djamshidian MD,

    1. Reta Lila Weston Institute of Neurological Studies, University College London, United Kingdom
    2. 2nd Neurological Department, General Hospital Hietzing with Neurological Center Rosenhuegel, Vienna 1130, Austria
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  • Andrew H. Evans MD,

    1. Department of Neurology, Royal Melbourne Hospital, Victoria, Australia
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  • Clare M. Loane MSc,

    1. Division of Clinical Neurosciences and MRC Clinical Sciences Centre, Faculty of Medicine, Hammersmith Hospital, Imperial College London, London, United Kingdom
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  • Andrew J. Lees FMedAcadSci,

    1. Reta Lila Weston Institute of Neurological Studies, University College London, United Kingdom
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    • Andrew J. Lees and Andrew D. Lawrence contributed equally this work.

  • Andrew D. Lawrence PhD

    1. Wales Institute of Cognitive Neuroscience, School of Psychology, Cardiff University, United Kingdom
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    • Andrew J. Lees and Andrew D. Lawrence contributed equally this work.


  • Potential conflict of interest: Nothing to report.

Abstract

Hoarding is seen in several psychiatric conditions, but has not been specifically assessed in Parkinson's disease (PD). This study investigates hoarding tendency amongst patients with PD, and its association with impulsive-compulsive spectrum behaviors (ICBs). We compare clinical features, measures of hoarding, impulse buying, self-control, obsessive-compulsive symptoms, depression, and anxiety in 39 patients with PD with ICBs (PD + ICB), 61 patients with PD without ICBs (PD − ICB), and 50 healthy controls. A much higher proportion of PD + ICB (27.8%) than PD − ICB (3.5%) were hoarders (P = 0.001). 6% of healthy controls were hoarders. Compulsive shoppers scored higher than other varieties of ICB on excessive acquisition measures. Hoarding correlated positively with impulsive buying, obsessive-compulsive symptoms, PD duration, and negatively with self-control measures. Using multivariate regression analyzes, the presence of ICBs and measures of impulsive buying were the only variables independently associated with hoarding in PD. The association of hoarding with other ICBs and low trait impulse control suggests that excessive hoarding is related to the spectrum of impulsive behaviors in PD. © 2010 Movement Disorder Society

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