The context of temporal processing is represented in the multidimensional relationships between timing tasks.
The context of temporal processing is represented in the multidimensional relationships between timing tasks.
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DOI：
10.1371/journal.pone.0003169
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发表时间：
2008-09-09
期刊：
影响因子：
3.7
通讯作者：
Prado L
中科院分区：
文献类型：
--
作者：
Merchant H;Zarco W;Bartolo R;Prado L
在本研究中，我们确定了10个不同的任务，涉及在亚秒范围内的时间间隔的处理性能的相互关系，使用多维分析。20名人类受试者执行以下明确的计时任务：间隔分类和歧视（感知任务），以及单和多个间隔敲击（生产任务）。此外，受试者进行了一个连续的画圆圈的任务，已被认为是一个内隐的时间范式，因为时间是一个新兴的属性所产生的空间轨迹。所有的任务也可以分为单间隔或多间隔范式。听觉或视觉标记用于定义间隔。性能变异性，一个措施，反映了每个任务的时间和非时间的过程，被用来构建一个相异性矩阵，量化的任务对之间的距离。对相异矩阵进行了层次聚类和多维标度分析，结果表明外显和内隐计时任务存在显著的分离，单间隔和多间隔范式之间存在明显的分组。与此相反，其他变量，如标记模态是不是至关重要的解释任务之间的性能。因此，使用这种方法，我们揭示了一个可能的功能安排的神经系统在不同的时间行为。
In the present study we determined the performance interrelations of ten different tasks that involved the processing of temporal intervals in the subsecond range, using multidimensional analyses. Twenty human subjects executed the following explicit timing tasks: interval categorization and discrimination (perceptual tasks), and single and multiple interval tapping (production tasks). In addition, the subjects performed a continuous circle-drawing task that has been considered an implicit timing paradigm, since time is an emergent property of the produced spatial trajectory. All tasks could be also classified as single or multiple interval paradigms. Auditory or visual markers were used to define the intervals. Performance variability, a measure that reflects the temporal and non-temporal processes for each task, was used to construct a dissimilarity matrix that quantifies the distances between pairs of tasks. Hierarchical clustering and multidimensional scaling were carried out on the dissimilarity matrix, and the results showed a prominent segregation of explicit and implicit timing tasks, and a clear grouping between single and multiple interval paradigms. In contrast, other variables such as the marker modality were not as crucial to explain the performance between tasks. Thus, using this methodology we revealed a probable functional arrangement of neural systems engaged during different timing behaviors.
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DOI：
10.1037/0096-1523.21.1.3
发表时间：
1995-02-01
影响因子：
2.1
作者：
IVRY, RB;HAZELTINE, RE
通讯作者：
HAZELTINE, RE
影响因子：
56.9
作者：
Spencer, RMC;Zelaznik, HN;Ivry, RB
通讯作者：
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DOI：
10.1111/j.1749-6632.2002.tb07576.x
发表时间：
2002-01-01
期刊：
CREBELLUM: RECENT DEVELOPMENTS IN CEREBELLAR RESEARCH
影响因子：
--
作者：
Ivry, RB;Spencer, RM;Diedrichsen, J
通讯作者：
Diedrichsen, J
影响因子：
25
作者：
Rao, SM;Mayer, AR;Harrington, DL
通讯作者：
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影响因子：
2.3
作者：
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