Adaptation to motor-visual and motor-auditory temporal lags transfer across modalities.
Previous research has shown that the timing of a sensor-motor event is recalibrated after a brief exposure to a delayed feedback of a voluntary action (Stetson et al. 2006). Here, we examined whether it is the sensory or motor event that is shifted in time. We compared lag adaption for action-feedback in visuo-motor pairs and audio-motor pairs using an adaptation-test paradigm. Participants were exposed to a constant lag (50 or 150 ms) between their voluntary action (finger tap) and its sensory feedback (flash or tone pip) during an adaptation period (approximately 3 min). Immediately after that, they performed a temporal order judgment (TOJ) task about the tap-feedback test stimulus pairings. The modality of the feedback stimulus was either the same as the adapted one (within-modal) or different (cross-modal). The results showed that the point of subjective simultaneity (PSS) was uniformly shifted in the direction of the exposed lag within and across modalities (motor-visual, motor-auditory). This suggests that the TRE of sensor-motor events is mainly caused by a shift in the motor component.
Sugano
Yoshimori
Y
Department of Psychology, Tilburg University, P.O. Box 90153, 5000 LE, Tilburg, The Netherlands.
Keetels
Mirjam
M
Vroomen
Jean
J
D000161:Acoustic Stimulation; D000222:Adaptation, Physiological / Q000502:physiology*; D000328:Adult; D001307:Auditory Perception / Q000502:physiology*; D001676:Biofeedback, Psychology / Q000502:physiology; D003071:Cognition / Q000502:physiology; D056344:Executive Function / Q000502:physiology; D005260:Female; D006801:Humans; D007600:Judgment / Q000502:physiology; D008297:Male; D009068:Movement / Q000502:physiology*; D009483:Neuropsychological Tests; D010775:Photic Stimulation; D011597:Psychomotor Performance / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology; D013997:Time Factors; D013998:Time Perception / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology