Do any Parkinson's Disease patients have family members diagnosed with Attention Deficit Hyperactivity Disorder (ADHD)? Have any Parkinson's Patients also been diagnosed with ADHD or ADD? These questions resulted from the following recent posting on Physicians' Online Psychiatry Discussion Group (Child and Adolescent Psychiatry): A 10-year-old boy diagnosed with ADHD showed evidence of cog-wheel rigidity and resting tremor. EMAIL: [log in to unmask] Fiona Geiser, Ph.D.