视觉单词处理中左半球优势的关键界限。
A critical boundary to the left-hemisphere advantage in visual-word processing.
作者信息
Deason Rebecca G, Marsolek Chad J
机构信息
Department of Psychology, University of Minnesota, 75 East River Road, Minneapolis, MN 55455, USA.
出版信息
Brain Lang. 2005 Mar;92(3):251-61. doi: 10.1016/j.bandl.2004.06.105.
Two experiments explored boundary conditions for the ubiquitous left-hemisphere advantage in visual-word recognition. Subjects perceptually identified words presented directly to the left or right hemisphere. Strong left-hemisphere advantages were observed for UPPERCASE and lowercase words. However, only a weak effect was observed for AlTeRnAtInG-cAsE words, and a numerical reversal of the typical left-hemisphere advantage was observed for words in a visual prototype font (a very unfamiliar word format). Results support the theory that dissociable abstract and specific neural subsystems underlie visual-form recognition and fail to support the theory that a visual lexicon operates in the left hemisphere.
两项实验探究了视觉单词识别中普遍存在的左半球优势的边界条件。受试者通过感知识别直接呈现给左半球或右半球的单词。对于大写和小写单词，观察到了强烈的左半球优势。然而，对于大小写交替的单词，仅观察到微弱的效应，而对于视觉原型字体（一种非常不熟悉的单词格式）中的单词，观察到了典型左半球优势的数值反转。结果支持了这样一种理论，即可分离的抽象和特定神经子系统是视觉形式识别的基础，并且不支持视觉词库在左半球运作的理论。
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