Parkinson's Disease (PD) is a progressive neurodegenerative disease clinically characterized by rigidity, bradykinesia and resting tremor. Beyond these symptoms the principal feature of this condition is the lost of habitual automatic movements and the disruption of different cognitive-motivational processes. These features are related to a pathological dopaminergic tone that alters the cortico-striatal pathways with several consequences on motor and emotional behaviours. Given its complexity PD impact very seriously on patients' quality of life (QoL).