I read the following in the June/July issue of AARP Magazine and found it very interesting.
"The Drugs: Levodopa and other dopamine agonists for Parkinson's disease
Potential Perk: A surge in creativity
The Evidence: For Parkinson's patients, tremors, loss of fine motor skills and muscle stiffness can make artistic activities that require dexterity more challenging. All the more surprising, then, that some patients develop new and impressive creative abilities, including painting and writing, during treatment, according to Rivka Inzelberg, M.D., a professor in the department of neurology at the Sheba Medical Center in Ramat Gan, Israel.
Published this year in Behavioral Neuroscience, Inzelberg's review identifies two underlying factors — levodopa and dopamine agonists, often used together in PD treatment to improve motor control. Both increase dopamine, a neurotransmitter that may be involved in brain pathways that "awaken" creativity."