Neural structures that support implicit sequence learning
Neural structures that support implicit sequence learning
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DOI：
10.1075/aicr.48.08haz
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发表时间：
2003-01
期刊：
影响因子：
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通讯作者：
E. Hazeltine;R. Ivry
中科院分区：
文献类型：
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作者：
E. Hazeltine;R. Ivry
运动序列学习是人类行为的基本组成部分。我们的日常生活充满了涉及复杂动作序列的行为，当我们对这些任务有足够的经验时，我们几乎毫不费力地完成它们。相比之下，当一项新任务——即使是简单的任务，比如操作一部手机——第一次尝试时，它可能会要求很高。如果没有运动学习，我们的生活将会是一系列琐碎而又耗费精力的行为。本文的主要目的是将序列学习的行为研究结果与神经影像学和神经心理学研究结果相结合。与对感知系统的广泛研究相比，运动序列学习在相关神经基质的功能分化方面仍然知之甚少。运动学习显然涉及到一个分布式的神经结构网络，包括顶叶、前额叶、前运动皮层和运动皮层，以及皮层下结构，如小脑到基底神经节。然而，这些不同结构的功能贡献在很大程度上仍然是推测性的。也就是说，大量的实证研究已经确定，许多区域有助于产生习得的运动序列，但只有少数线索被发现，以帮助区分这些区域执行的计算。
Motor sequence learning is a fundamental component of human behavior. Our daily lives are filled with behaviors that involve complex sequences of movements, and, when we are sufficiently experienced with these tasks, we perform them nearly effortlessly. In contrast, when a novel task–even a simple one, such as operating a new mobile phone–is attempted for the first time, it can be highly demanding. Without motor learning, our lives would be an endless series of trivial but all consuming actions. The primary goal of this paper is to meld concepts arising from behavioral investigations of sequence learning with findings from neuroimaging and neuropsychological studies. In contrast to the extensive work on perceptual systems, motor sequence learning remains poorly understood in terms of the functional differentiation of the implicated neural substrate. Motor learning clearly involves a distributed network of neural structures, including parietal, prefrontal, premotor, and motor cortex, as well as subcortical structures such as the cerebellum to the basal ganglia. However, the functional contributions of these various structures have remained largely speculative. That is, a sizable body of empirical research has established that many regions contribute to the production of learned motor sequences, but only a few clues have been uncovered to help distinguish the computations performed by these regions.