
J Neuropsychiatry Clin Neurosci 21:266-270, Summer
doi: 10.1176/appi.neuropsych.21.3.266
© 2009 American Neuropsychiatric Association
Apathy Is Not Depression in Huntingtons Disease
Paul Naarding, M.D., Ph.D.,
Joost G.E. Janzing, M.D., Ph.D.,
Paul Eling, Ph.D.,
Sieberen van der Werf, Ph.D. and
Berry Kremer, M.D., Ph.D.
Received December 11, 2007; revised March 30 and June 23, 2008; accepted June 26, 2008. Dr. Naarding is affiliated with GGNet Mental Health, Division of Old Age Psychiatry, Apeldoorn, The Netherlands; Dr. Janzing is affiliated with the Department of Psychiatry, Radboud University Nijmegen Medical Centre, The Netherlands; Dr. Eling is affiliated with Psychology, Donders Institute for Brain, Cognition, and Behavior, Radboud University, Nijmegen, The Netherlands; Dr. van der Werf is affiliated with the Department of Medical Psychology, Radboud University Nijmegen Medical Centre; Dr. Kremer is affiliated with the Department of Neurology, Radboud University Nijmegen Medical Centre. Address correspondence to P. Naarding, M.D., Ph.D., GGNet Mental Health, Department of Old Age Psychiatry, Sprenge Building, Location Deventerstraat Apeldoorn, P.O. Box 2003, 7230 GC Warnsveld, The Netherlands; p.naarding{at}ggnet.nl (e-mail).
Apathy and depression are common neuropsychiatric features of Huntingtons disease. The authors studied a group of 34 Huntingtons disease patients. In addition to the conventional classification according to DSM-IV criteria of depression, emphasis was put on a dimensional approach using scores on several different scales. Severe depression was found in 12% and severe apathy in 52% of all study patients. The authors found that apathy and depression are not related and are clearly distinct dimensions. Apathy was related to disease characteristics such as cognitive deterioration and functional decline, whereas depression was not.
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