http://www.springerlink.com/content/m3784n85ut8m7716/
Journal of Neural Transmission. Supplementa
Parkinson’s Disease and Related Disorders
P. Riederer, H. Reichmann, M. B. H. Youdim and M. Gerlach
Bad oscillations in Parkinson’s disease
P. Brown4
(4) Sobell Department of Motor Neuroscience and Movement Disorders, Institute of Neurology, Queen Square, London, WC1N 3BG, UK
Summary
Recordings in humans...have revealed a tendency for basal ganglia neurons to oscillate and synchronise their activity, giving rise to a rhythmic population activity, manifest as oscillatory local field potentials. The most important activity is synchronised oscillation in the beta band (13–30 Hz), which has been picked up at various sites within the basal ganglia-cortical loop in PD. Dopaminergic medication and movement suppress this activity, with the timing and degree of suppression closely correlating with behavioural performance...
(more info about beta oscillations in movement disorders
http://brain.oxfordjournals.org/cgi/...full/127/4/721