The basal ganglia in perceptual timing: Timing performance in Multiple System Atrophy and Huntington's disease

Ninety five percent confidence intervals for mean group performance by task. Var: sub-second variable-interval discrimination. Sup: supra-second variable-interval discrimination. Pul: detection of regularity (pulse or beat) within an irregular sequence. Iso: detection of deviation from isochrony. Irr: detection of irregularity within a regular sequence. Met: detection of distortion of a sequence with strong metrical structure.106