AGE-RELATED DIFFERENCES IN TIMING CONTROL OF REPETITIVE MOVEMENT - APPLICATION OF THE WING-KRISTOFFERSON MODEL

AGE-RELATED DIFFERENCES IN TIMING CONTROL OF REPETITIVE MOVEMENT - APPLICATION OF THE WING-KRISTOFFERSON MODEL
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DOI:
10.1080/02701367.1993.10608776
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发表时间:
1993-03-01
影响因子:
2.2
通讯作者:
WILIAMS, HG
WILIAMS, HG
中科院分区:
医学4区
文献类型:
--
作者:
GREENE, LS;WILIAMS, HG

文献摘要

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时间控制的年龄差异被调查在6到75岁的人中。受试者进行了重复的手指敲击任务,试图匹配550毫秒的反应间隔(IRI)。用Wing-Kristofferson(1973)的方法分析了反应的变异性。自协方差技术估计了由中央(时钟)和外围实施(运动延迟)过程贡献的总体(总)IRI变异性的比例。只有总变异性和时钟变异性显示出显著的年龄和性别差异。结果表明:(A)幼儿(6-7岁)的变异性高于所有其他年龄组;(B)年龄较大的儿童(9-10岁)的变异性大于中青年成人;(C)三个成人年龄组(21-75岁)的变异性没有显著差异;(D)在所有年龄组中,男性的变异性都小于女性。与最近使用Wing-Kristofferson方法的研究一致,这项研究表明,与年龄相关的时序控制差异在很大程度上是中央过程的功能。
Age differences in timing control were investigated in persons between 6 and 75 years. Subjects performed a repetitive finger-tapping task, attempting to match a 550-ms interresponse interval (IRI). Response variability was analyzed using the method of Wing-Kristofferson (1973). An autocovariance technique estimated the proportion of the overall (total) IRI variability contributed by central (clock) and peripheral implementation (motor delay) processes. Significant age and gender differences were revealed only for total and clock variability. Results indicated that (a) young children (6-7 years) had higher variances than all other age groups, (b) older children (9-10 years) were more variable than young and middle-age adults, (c) variances did not differ significantly across three adult age groups (21-75 years), and (d) males were less variable than females for all age groups. In agreement with recent investigations that have used the Wing-Kristofferson methodology, this study suggests that age-related differences in timing control are largely a function of central processes.