Role of Mesocorticolimbic Pathway in Apathy of Patients With Parkinson's Disease. - Study Using Diffusion Tensor Imaging and Fibres Tracking

The objective of this study is to explore, using diffusion weighted MRI, the regions of the brain which are proposed to play a role in motivation in apathetic Parkinson's disease patients and to define more precisely the relation between dopaminergic fibres and the meso-cortico-limbic system with the help of tractography methods