Imaging motor imagery: Methodological issues related to expertise
Imaging motor imagery: Methodological issues related to expertise
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DOI：
10.1016/j.ymeth.2008.05.002
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发表时间：
2008-08-01
期刊：
影响因子：
4.8
通讯作者：
Solodkin, Ana
中科院分区：
文献类型：
--
作者：
Milton, John;Small, Steven L.;Solodkin, Ana
心理表象（MI）是指在没有明显动作执行的情况下对动作进行的心理演练。脑成像技术使得识别在心理表象过程中被激活的脑区成为可能，并且对于涉及手部和手指运动的随意运动任务，能够与实际运动过程中被激活的区域进行直接比较。然而，不同类型的表象（视觉的或动觉的）脑激活情况不同，而且脑激活取决于个体的技能水平（例如，新手或优秀运动员）这一事实，为研究心理表象的脑成像方案设计提出了许多重要的方法学问题。这些问题包括指导被试使用的表象类型、技能水平的客观测量、设计难度足以产生一系列技能水平的运动任务、不同环境对技能水平的影响（包括成像设备）等等。有人认为，心理表象更多地是关于已经习得但尚未完善的运动技能发展的神经生物学，而不是关于从头学习运动技能。（C）2008爱思唯尔公司。保留所有权利。
Mental imagery (MI) is the mental rehearsal of movements without overt execution. Brain imaging techniques have made it possible to identify the brain regions that are activated during MI and, for voluntary motor tasks involving hand and finger movements, to make direct comparison with those areas activated during actual movement. However, the fact that brain activation differs for different types of imagery (visual or kinetic) and depends on the skill level of the individual (e.g., novice or elite athlete) raises a number of important methodological issues for the design of brain imaging protocols to study MI. These include instructing the subject concerning the type of imagery to use, objective measurement of skill level. the design of motor tasks sufficiently difficult to produce a range of skill levels, the effect of different environments on skill level (including the imaging device), and so on. It is suggested that MI is more about the neurobiology of the development of motor skills that have already been learned, but not perfected, than it is about learning motor skills de novo. (C) 2008 Elsevier Inc. All rights reserved.