Cognition and emotion in different stages and subtypes of Parkinson's disease

This paper reviews the main neuropsychological features of movement disorde rs such as Parkinson's disease (PD), progressive supranuclear palsy (PSP), multiple system atrophy (MSA), Huntington's disease (HD), corticobasal dege neration (CBD), and diffuse Lewy body disease (DLBD). These neurodegenerati ve disorders all share a prominent frontal lobe-like syndrome which can be explained by damage to connections between the basal ganglia and the cortic al areas involved in movement, and in behavioural and mood control. In this paper different types of cognitive and mood alteration are described in an attempt to identify additional reasons fur the differential diagnosis of p arkinsonism-like syndromes.