Repp B H
Haskins Laboratories, 270 Crown Street, New Haven, CT 06511-6695, USA.
Hum Mov Sci. 2001 Jun;20(3):277-312. doi: 10.1016/s0167-9457(01)00049-5.
In synchronizing finger taps with an auditory sequence, a small sudden tempo ("step") change in the sequence tends to be followed by rapid adaptation of the tapping period but slow adaptation of the relative phase of the taps, whereas a larger step change leads to initial period overshoot followed by rapid adaptation of both period and phase [M.H. Thaut, R.A. Miller, L.M. Schauer, Biological Cybernetics 79 (1998a) 241-250]. Experiment 1 replicated these findings and showed that the transition between the two patterns of adaptation occurs near the perceptual detection threshold for a tempo change. A reasonable explanation of these data was provided by a dual-process model of internal error correction [J. Mates, Biological Cybernetics 70 (1994a) 463-473, 70 (1994b) 475-484], with the added assumption that one process (period correction) depends on conscious awareness of a tempo change whereas the other (phase correction) does not. This assumption received support in Experiment 2, where a synchronization-continuation tapping task was used in combination with perceptual judgments to probe into the process of period correction following step changes. The results led to the conclusion that rapid adaptation of the tapping period to a small, undetected tempo change is in fact due to rapid internal phase correction, whereas slow adaptation of the relative phase of the taps is due to slow internal period correction.
在使手指敲击与听觉序列同步时，序列中一个小的突然的节奏（“步长”）变化之后，敲击周期往往会迅速适应，但敲击的相对相位适应较慢；而较大的步长变化会导致初始周期超调，随后周期和相位都会迅速适应[M.H. 绍特、R.A. 米勒、L.M. 绍尔，《生物控制论》79 (1998a) 241 - 250]。实验1重复了这些发现，并表明两种适应模式之间的转变发生在节奏变化的感知检测阈值附近。内部误差校正的双过程模型[J. 马茨，《生物控制论》70 (1994a) 463 - 473, 70 (1994b) 475 - 484]为这些数据提供了一个合理的解释，并额外假设一个过程（周期校正）依赖于对节奏变化的有意识感知，而另一个过程（相位校正）则不依赖。这一假设在实验2中得到了支持，在该实验中，同步 - 延续敲击任务与感知判断相结合，以探究步长变化后周期校正的过程。结果得出结论，敲击周期对小的、未被察觉的节奏变化的快速适应实际上是由于快速的内部相位校正，而敲击相对相位的缓慢适应是由于缓慢的内部周期校正。
