Movement preparation in Parkinson's disease. The use of advance information.
Movement preparation in Parkinson's disease. The use of advance information.
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帕金森病的运动准备。
DOI：
10.1093/brain/109.6.1179
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
Strand,EA
中科院分区：
文献类型：
--
作者：
Stelmach,GE;Worringham,CJ;Strand,EA
通过运动预暗示的方法，评估预先信息对帕金森病患者运动规划的影响。使用这项技术，在不同程度和类型的提前运动信息被操纵的条件下，比较相同运动集合的反应潜伏期。8名帕金森氏病患者和8名神经学年龄匹配的正常对照作为研究对象。实验表明，帕金森病患者的反应时延长主要不是由于反应选择的延迟造成的。对三个维度中每一个维度的规格时间的估计显示，帕金森氏症患者的速度仅略有放缓。在响应信号之前未知的那些运动维度的规范似乎是连续发生的，并且可以像在正常情况下一样以可变的顺序出现。由于帕金森病患者可以在部分或全部信息可用时启动潜伏期较短的运动，尽管比正常人慢，因此我们得出结论，快速离散运动之前的反应选择和指定过程相对不受疾病的影响。与正常人相比，帕金森病患者运动启动的整体缓慢可能部分是由于运动时间的过度延迟造成的，通常是由于那些不受提前信息影响的输入和/或输出过程。
The effects of advance information on movement planning in parkinsonism were assessed by means of movement precuing. Using this technique, the response latencies of identical sets of movements were compared across conditions in which the degree and type of advance movement information were manipulated. Specifically, prior information concerning three movement dimensions (the direction and extent of forthcoming movements, as well as the limb to be used) was or was not provided.Eight patients with Parkinson's disease and 8 neurologically normal age-matched controls served as subjects The experiment showed that the elevated reaction times of the parkinsonian subjects are not primarily caused by delays in response selection. Estimates of specification times for each of the three dimensions showed only a modest slowing in parkinsonians. The specification of those movement dimensions unknown before the response signal appears to occur serially, and can occur in a variable order as in normals. Since parkinsonians can initiate movements with shorter latencies when partial or complete information is available, albeit more slowly than normals, we conclude that response selection and specification processes preceding rapid discrete movements are relatively unaffected by the disease. The overall slowness in movement initiation in parkinsonians as compared with normals may in part be caused by excessive delays in motor time and, in general, to those ‘input’ and/or ‘output’ processes which are unaffected by advance information.
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运动行为的控制理论
影响因子：
1.8
作者：
G. Stelmach;Virginia A. Diggles
通讯作者：
Virginia A. Diggles
DOI：
--
发表时间：
1984
期刊：
Brain : a journal of neurology
影响因子：
--
作者：
R. Rafal;M. Posner;J. Walker;F. J. Friedrich
通讯作者：
F. J. Friedrich
认知和基底神经节
DOI：
--
发表时间：
1984
期刊：
影响因子：
--
作者：
R. Rafal;John A. Walker;M. Posner;F. J. Friedrich
通讯作者：
F. J. Friedrich
DOI：
10.1037//0096-3445.109.4.475
发表时间：
1980
期刊：
Journal of experimental psychology. General
影响因子：
--
作者：
Goodman,D;Kelso,JA
通讯作者：
Kelso,JA
DOI：
10.3758/bf03330031
发表时间：
1982
期刊：
Bulletin of the psychonomic society
影响因子：
--
作者：
M. Bonnet;J. Requin;G. Stelmach
通讯作者：
G. Stelmach