Asymmetry and performance: Toward a neuro developmental theory
Asymmetry and performance: Toward a neuro developmental theory
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DOI：
10.1016/j.bandc.2007.06.002
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发表时间：
2008-03-01
影响因子：
2.5
通讯作者：
Merrill, Edward C.
中科院分区：
文献类型：
--
作者：
Boles, David B.;Barth, Joan M.;Merrill, Edward C.
半球不对称意味着存在对一个半球的影响大于另一个半球的影响。然而，人们对这些影响知之甚少。一种简单的观点是，不对称的存在可能是因为心理过程的偏侧程度与其功能之间的关系。数据缩放问题在很大程度上阻止了此类调查，但研究表明，在对天花板和地板效应进行校正后，缩放效应最小化。修正后，横向化与绩效的相关性是普遍存在的。然而，虽然一些相关性是积极的，但其他相关性是消极的，其方向取决于潜在的侧化过程。提出了两种假设，可以通过指出胼胝体成熟的个体差异或不同童年时期遇到的发育限制来解释这些关系。他们的研究应该有助于大脑半球不对称的神经发育理论。(c) 2007爱思唯尔公司版权所有。
Hemispheric asymmetry implies the existence of developmental influences that affect one hemisphere more than the other. However, those influences are poorly understood. One simple view is that asymmetry may exist because of a relationship between a mental process' degree of lateralization and how well it functions. Data scaling issues have largely prevented such investigations, but it is shown that scaling effects are minimized after correction for ceiling and floor effects. After correction, lateralization-performance correlations are pervasive. However, while some correlations are positive, others are negative, with the direction depending on the underlying lateralized process. Two hypotheses are proposed that can account for these relationships by pointing either to individual differences in maturation of the corpus callosum or to developmental limits encountered at different ages of childhood. Their investigation should contribute toward a neurodevelopmental theory of hemispheric asymmetry. (c) 2007 Elsevier Inc. All rights reserved.