Phase correction, phase resetting, and phase shifts after subliminal timing perturbations in sensorimotor synchronization
Phase correction, phase resetting, and phase shifts after subliminal timing perturbations in sensorimotor synchronization
复制标题
DOI：
10.1037/0096-1523.27.3.600
复制
发表时间：
2001-06-01
影响因子：
2.1
通讯作者：
Repp, BH
中科院分区：
文献类型：
--
作者：
Repp, BH
最近对同步手指敲击的研究表明，听觉序列中的感知潜意识相移在运动活动中得到快速补偿（B. H. Repp，2000a）。实验我使用了连续敲击任务来确认这种补偿确实是相位校正，而不是中央计时器周期的调整。实验 2-5 表明，即使不存在普通的感觉运动异步，即当手指敲击相对于听觉序列处于反相或任意相位时（实验 2 和 3），或者当敲击与序列相移一致时（实验 4 和 5），这种相位校正也会发生。在后一种情况下观察到的相位校正是瞬时的，这表明当运动活动不连续时会发生相位重置。在某些条件下观察到表明过度补偿的长时间相移，这对纯相位校正模型提出了挑战。
Recent studies of synchronized finger tapping have shown that perceptually subliminal phase shifts in an auditory sequence are rapidly compensated for in the motor activity (B. H. Repp, 2000a). Experiment I used a continuation-tapping task to confirm that this compensation is indeed a phase correction, not an adjustment of the central timekeeper period. Experiments 2-5 revealed that this phase correction occurs even when there is no ordinary sensorimotor asynchrony-when the finger taps are in antiphase or arbitrary phase relative to the auditory sequence (Experiments 2 and 3) or when the tap coinciding with the sequence phase shift is withheld (Experiments 4 and 5). The phase correction observed in the latter conditions was instantaneous, which suggests that phase resetting occurs when the motor activity is discontinuous. A prolonged phase shift suggestive of overcompensation was observed in some conditions, which poses a challenge to pure phase correction models.