白质的变化如何可能是因练习而导致反应时间改善的基础。
How changes in white matter might underlie improved reaction time due to practice.
作者信息
Voelker Pascale, Piscopo Denise, Weible Aldis P, Lynch Gary, Rothbart Mary K, Posner Michael I, Niell Cristopher M
机构信息
a Department of Psychology , University of Oregon , Eugene , OR , USA.
b Department of Biology , University of Oregon , Eugene , OR , USA.
出版信息
Cogn Neurosci. 2017 Apr;8(2):112-118. doi: 10.1080/17588928.2016.1173664. Epub 2016 Apr 28.
Abstract
Why does training on a task reduce the reaction time for performing it? New research points to changes in white matter pathways as one likely mechanism. These pathways connect remote brain areas involved in performing the task. Genetic variations may be involved in individual differences in the extent of this improvement. If white matter change is involved in improved reaction time with training, it may point the way toward understanding where and how generalization occurs. We examine the hypothesis that brain pathways shared by different tasks may result in improved performance of cognitive tasks remote from the training.
摘要
为什么针对一项任务进行训练会减少执行该任务的反应时间？新的研究指出白质通路的变化是一种可能的机制。这些通路连接参与执行任务的不同脑区。基因变异可能与这种改善程度的个体差异有关。如果白质变化与训练后反应时间的改善有关，那么它可能为理解泛化发生的位置和方式指明方向。我们检验了这样一种假设，即不同任务共有的脑通路可能会提高远离训练任务的认知任务的表现。
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