Prof Reynolds, of the University of Otago anatomy department, said research was going on throughout the world on various aspects of Parkinson's disease, including into possible therapies.
His own research group was also tackling how to achieve much earlier diagnosis.
A series of speakers have been giving evening talks at the Otago Museum throughout the latest Brain Awareness Week, which began in Dunedin on Monday.
Prof David Bilkey, of Otago psychology department, and Prof Cliff Abraham, also of psychology and co-director of Brain Research New Zealand, will discuss, respectively, The Adult Brain and Healthy ageing , and Loss of Brain Function & Brain Death, at the museum's Hutton Theatre today.
Members of the public will be able to explore an ''inflatable brain'' in the Upper Octagon tomorrow, and local neurological agencies will set up a public display.
Prof Reynolds will discuss ''Treatments for Parkinson's disease-what does the future hold'' on Saturday morning, during Brain Day.
The series of talks at the museum throughout Saturday have also been organised.
Parkinson's disease is a long-term degenerative disorder of the central nervous system that mainly affects the motor system, and symptoms usually come on slowly.
Prof Reynolds said his Parkinson's disease research was funded from the public purse, and he wanted to share with the public what progress was being made and how to better understand the disease.
