Centre for Parenting, Child Welfare & Disabilities, Faculty of Psychology and Educational Sciences, Katholieke Universiteit Leuven, Leuven, Belgium.
Neuropsychologia. 2010 Dec;48(14):3973-81. doi: 10.1016/j.neuropsychologia.2010.10.018. Epub 2010 Oct 20.
The triple-code model, cognitive neuroimaging and developmental behavioral data suggest a specific association between phonological processing and arithmetic fact retrieval. Accordingly, individuals with deficits in phonological processing, such as individuals with developmental dyslexia, are expected to show difficulties in arithmetic fact retrieval. The present study tested this proposal in 25 adults with developmental dyslexia and 25 matched controls by examining strategy use during single-digit multiplication and subtraction and its associations with phonological processing. Findings revealed that individuals with dyslexia retrieved fewer arithmetic facts from memory and were less efficient in doing so. At the same time, they showed deficits in phonological processing. Phonological processing, particularly phonological awareness, was related to arithmetic fact retrieval. This association was especially prominent in multiplication, indicating that fact retrieval in multiplication rather than subtraction is mediated by phonological processes. These data provide ground for future neuroimaging studies, who should examine the neural overlap between phonological processing and multiplication fact retrieval in the same sample of participants.
三重编码模型、认知神经影像学和发展行为学数据表明，语音处理与算术事实检索之间存在特定的关联。因此，语音处理有缺陷的个体，如发展性阅读障碍者，预计在算术事实检索方面会有困难。本研究通过检查 25 名发展性阅读障碍者和 25 名匹配对照者在进行一位数乘法和减法时的策略使用情况及其与语音处理的关系，检验了这一假设。研究结果表明，阅读障碍者从记忆中检索的算术事实较少，效率也较低。同时，他们在语音处理方面也存在缺陷。语音处理，特别是语音意识，与算术事实检索有关。这种关联在乘法中尤为突出，表明乘法中的事实检索而不是减法受到语音过程的影响。这些数据为未来的神经影像学研究提供了依据，未来的研究应该在同一组参与者中检查语音处理和乘法事实检索之间的神经重叠。
