Fournier-Vicente Siobhan, Larigauderie Pascale, Gaonac'h Daniel
Centre de Recherches sur la Cognition et l'Apprentissage, UMR CNRS 6234, Université de Poitiers, France.
Acta Psychol (Amst). 2008 Sep;129(1):32-48. doi: 10.1016/j.actpsy.2008.04.004. Epub 2008 May 21.
The present study examined the separability of six executive functions (verbal storage-and-processing coordination, visuospatial storage-and-processing coordination, dual-task coordination, strategic retrieval, selective attention, and shifting) and their relationships, by means of confirmatory factor analysis. A set of tasks thought to primarily assess each target function was administered to 180 participants. The results demonstrated that five of the six functions initially considered were distinguishable albeit related constructs, with one of these functions combining inhibitory and strategic retrieval processes. The analyses failed to reveal a single dual-task coordination ability underlying performance on the dual-tasks. These findings provide further support for the fractionation of the central executive into several functions and also stress the need to approach executive functioning in terms of both dissociations within general functions and specific interactions between some of these functions.
本研究通过验证性因素分析，检验了六种执行功能（言语存储与加工协调、视觉空间存储与加工协调、双任务协调、策略性检索、选择性注意和转换）的可分离性及其相互关系。向180名参与者施测了一组被认为主要评估每种目标功能的任务。结果表明，最初考虑的六种功能中的五种是可区分的，尽管它们是相关的结构，其中一种功能结合了抑制和策略性检索过程。分析未能揭示双任务表现背后存在单一的双任务协调能力。这些发现为将中央执行功能细分为多种功能提供了进一步支持，同时也强调了从一般功能内的分离以及其中一些功能之间的特定相互作用来研究执行功能的必要性。
