Variability in isochronous tapping: Higher order dependencies as a function of intertap interval
Variability in isochronous tapping: Higher order dependencies as a function of intertap interval
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DOI：
10.1037/0096-1523.27.2.411
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发表时间：
2001-04-01
影响因子：
2.1
通讯作者：
Madison, G
中科院分区：
文献类型：
--
作者：
Madison, G
同步串行间隔生产（ISIP）数据，如来自无节奏的手指敲击，表现出更高的顺序依赖性（漂移）。这一事实在很大程度上被计时文献所忽视，其中一个原因可能是有影响力的计时模型假设随机变异性。研究对象为22-36岁的男性和女性，以0.4 ~ 2.2 s的间歇时间（ITI）完成同步-延续任务。结果表明：(a)在较长时间内，漂移对弥散有重要贡献；(b)漂移和一阶相关是不同的ITI函数；(c)在接近1.0 s和1.4 s ITI时，漂移表现出断裂。这些中断与其他时间任务的表现的定性变化相对应，这表明跨模式和任务的共同计时过程。
lsochronous serial interval production (ISIP) data, as from unpaced finger tapping, exhibit higher order dependencies (drift). This fact has largely been ignored by the timing literature, one reason probably being that influential timing models assume random variability. Men and women, 22-36 years old, performed a synchronization- continuation task with intertap intervals (ITI) from 0.4 s to 2.2 s. ISIP variability was partitioned into components attributable to drift and Ist-order serial correlation, and the results indicate that (a) drift contributes substantially to the dispersion for longer ITIs, (b) drift and I st-order correlation are different functions of the ITI, and (c) drift exhibits break close to 1.0 s and 1.4 s ITI. These breaks correspond to qualitative changes in performance for other temporal tasks, which suggests common timing processes across modalities and tasks.