Production of short timing responses: a comparative study with a deafferented patient.
How far can proprioception contribute to time keeping? To answer this question, a deafferented patient and neurologically normal subjects produced 1- or 5-sec durations in a sustained (continuous finger press) or discrete (two successive finger taps) manner, with and without Knowledge of Results. The findings were that: (1) proprioceptive afferents contribute to timing regulation in motor production of short durations; (2) this role can be rapidly compensated by Knowledge of Results; (3) the proprioceptive contribution is more important for sustained than for discrete performances; (4) stable performances are produced even when KR is withdrawn, suggesting familiarization with KR leads to the establishment of a mnemonic trace.
Fleury
M
M
Laboratoire de Performance Motrice Humaine, Université Laval, Québec, Canada.
Macar
F
F
Bard
C
C
Teasdale
N
N
Paillard
J
J
Lamarre
Y
Y
Forget
R
R
D000328:Adult; D000344:Afferent Pathways / Q000503:physiopathology*; D001288:Attention / Q000502:physiology; D005260:Female; D006801:Humans; D007721:Knowledge of Results, Psychological; D008297:Male; D008875:Middle Aged; D009413:Nerve Fibers, Myelinated / Q000502:physiology; D010523:Peripheral Nervous System Diseases / Q000503:physiopathology* / Q000523:psychology; D011434:Proprioception / Q000502:physiology*; D011597:Psychomotor Performance / Q000502:physiology; D011930:Reaction Time / Q000502:physiology*; D012016:Reference Values; D011984:Sensory Receptor Cells / Q000503:physiopathology; D013998:Time Perception / Q000502:physiology*