Bigsby P
University of East Anglia, Norwich, Norfolk, UK.
Br J Psychol. 1990 May;81 ( Pt 2):227-63. doi: 10.1111/j.2044-8295.1990.tb02358.x.
Four experiments, first used by Bigsby (1988a), were presented to three groups of competent readers of varying reading ages and to nine developmentally dyslexic children. As in the initial study, competent reader data were analysed using group statistical analysis techniques together with some discussion of individual experimental effects and error levels. Competent reader data were also analysed, as were data from the dyslexic subjects, at a cognitive functional level and individual processing descriptions were obtained. Results from the group analysis confirmed earlier findings that nominal matches engage an abstract letter identity (ALI) code which has a similar capacity to the visual code and that, when the ALI code of a reversible letter (b, d, p, q) is accessed, an extra processing step is probably involved. Individual processing descriptions revealed that several of the dyslexic subjects displayed major impairments in ALI coding while some of the competent readers showed mild inefficiencies. A developmental trend towards greater processing efficiency was noted, using both methods of analysis, for the competent reader sample. It is concluded that results are consistent with those models of word recognition which depict ALI coding as a necessary prerequisite to word recognition.
四项最初由比格斯比（1988a）采用的实验，被呈现给三组阅读年龄各异的熟练读者以及九名发育性阅读障碍儿童。与最初的研究一样，对熟练读者的数据使用组统计分析技术进行分析，并对个体实验效应和误差水平进行了一些讨论。还在认知功能层面分析了熟练读者的数据以及阅读障碍受试者的数据，并获得了个体加工描述。组分析的结果证实了早期的发现，即名义匹配会激活一种抽象字母识别（ALI）代码，其容量与视觉代码相似，并且当访问可逆字母（b、d、p、q）的ALI代码时，可能会涉及一个额外的加工步骤。个体加工描述显示，几名阅读障碍受试者在ALI编码方面存在重大缺陷，而一些熟练读者则表现出轻度低效。使用两种分析方法，均注意到熟练读者样本存在加工效率提高的发展趋势。结论是，结果与那些将ALI编码描述为单词识别必要前提的单词识别模型一致。
