An arm with a mind of its own.
D000368:Aged; D001132:Arm / Q000503:physiopathology*; D001480:Basal Ganglia Diseases / Q000503:physiopathology*; D002540:Cerebral Cortex / Q000000981:diagnostic imaging / Q000503:physiopathology*; D006801:Humans; D008297:Male; D009410:Nerve Degeneration / Q000000981:diagnostic imaging / Q000503:physiopathology*; D015899:Tomography, Emission-Computed, Single-Photon