The effect of sensory feedback on the timing of movements: evidence from deafferented patients.
The role of sensory feedback in the control of movements was investigated in two deafferented patients with complete loss of cutaneous touch and movement/position sense below the neck and two control groups of different ages. In a synchronized repetitive finger-tapping task in time with a regular auditory pacing signal, the deafferented participants showed a strong influence of extrinsic feedback. In contrast to controls who demonstrated a typical asynchrony between their taps and the pacing signal in all feedback conditions, the deafferented participants, with auditory feedback and visual monitoring, showed no asynchrony between finger taps and the pacing signal. These findings support the view that sensory information plays a crucial role in the anticipatory timing of movements.
Max Planck Institute for Human Cognitive and Brain Sciences, Department of Psychology (formerly Max Planck Institute for Psychological Research, Cognition and Action), Munich, Germany. PStenn@zedat.fu-berlin.de
Prisca
P
Stenneken
Wolfgang
W
Prinz
Jonathan
J
Cole
Jacques
J
Paillard
Gisa
G
Aschersleben
D000161:Acoustic Stimulation / Q000379:methods; D000328:Adult; D001676:Biofeedback, Psychology / Q000502:physiology*; D016022:Case-Control Studies; D002422:Causalgia / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D009068:Movement / Q000502:physiology*; D010775:Photic Stimulation / Q000379:methods; D013998:Time Perception / Q000502:physiology*