Imaging basal ganglia function.
In this review, the value of functional imaging for providing insight into the role of the basal ganglia in motor control is reviewed. Brain activation findings in normal subjects and Parkinson's disease patients are examined and evidence supporting the existence for functionally independent distributed basal ganglia-frontal loops is presented. It is argued that the basal ganglia probably act to focus and filter cortical output, optimising the running of motor programs.
MRC Cyclotron Unit, Imperial College School of Medicine, Hammersmith Hospital, London, UK.
D J
DJ
Brooks
D001479:Basal Ganglia / Q000000981:diagnostic imaging* / Q000503:physiopathology; D006801:Humans; D009043:Motor Activity; D010300:Parkinson Disease / Q000000981:diagnostic imaging* / Q000503:physiopathology; D014055:Tomography, Emission-Computed