Department of Developmental and Socialization Psychology, University of Padova, Padova, Italy.
J Intellect Disabil Res. 2012 Feb;56(2):157-66. doi: 10.1111/j.1365-2788.2011.01444.x. Epub 2011 Jul 5.
Recent studies have shown that individuals with Down syndrome (DS) are poorer than controls in performing verbal and visuospatial dual tasks. The present study aims at better investigating the dual task deficit in working memory in individuals with DS.
Forty-five individuals with DS and 45 typically developing children matched for verbal mental age completed a series of verbal and visuospatial working memory tasks, involving conditions that either required the combination of two tasks in the same modality (verbal or visual) or of cross-modality pairs of tasks.
Two distinct deficits were found in individuals with DS: impairment in verbal tasks and further impairment in all dual task conditions. The results confirm the hypothesis of a central executive impairment in individuals with DS.
最近的研究表明，唐氏综合征（DS）患者在执行言语和视空间双重任务时比对照组差。本研究旨在更好地研究 DS 个体在工作记忆中的双重任务缺陷。
45 名 DS 患者和 45 名言语智力年龄匹配的正常发育儿童完成了一系列言语和视空间工作记忆任务，包括需要在同一模态（言语或视觉）或跨模态对任务组合两种任务的条件。
DS 患者存在两种不同的缺陷：言语任务受损，以及所有双重任务条件下的进一步受损。结果证实了 DS 个体中央执行功能受损的假设。
