Serial cognitive profiles in levodopa-induced hypersexuality.

A patient with recent-onset Parkinson's disease was tested for mood, physical disability, and cognition, before treatment and then during and after a period of levodopa-induced hypersexuality. The effects of different anti-Parkinsonian drugs on cognition and behaviour are described. The unique cognitive data from this case support the hypothesis that hypersexuality is a manifestation of enhanced libido and not frontal disinhibition.