Effects of depression and Parkinson's disease on cognitive functioning

Suzanne Norman, Alexander I. Tröster, Julie A. Fields, Rebecca Brooks

Research output: Contribution to journalArticlepeer-review

70 Scopus citations


This study compared the performance of Parkinon's disease (PD) patients with and without depression, patients with depression alone, and normal control subjects on a cognitive screening instrument, the Mattis Dementia Rating Scale (DRS) to evaluate the influences of depression and Parkinson's disease on cognition. PD affects overall level of cognitive functioning and, to a lesser extent, DRS Initiation/Perseveration, Construction, and Attention. Diminished memory was primarily related to depression. Treatment of depression may ameliorate aspects of cognitive dysfunction in the PD patient with depression.

Original languageEnglish (US)
Pages (from-to)31-36
Number of pages6
JournalJournal of Neuropsychiatry and Clinical Neurosciences
Issue number1
StatePublished - Jan 1 2002

ASJC Scopus subject areas

  • Clinical Neurology
  • Psychiatry and Mental health


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