Difficulties in working memory updating in individuals with intellectual disability
Difficulties in working memory updating in individuals with intellectual disability
复制标题
DOI：
10.1111/j.1365-2788.2010.01267.x
复制
发表时间：
2010-04-01
影响因子：
3.6
通讯作者：
Cornoldi, C.
中科院分区：
文献类型：
--
作者：
Carretti, B.;Belacchi, C.;Cornoldi, C.
尽管工作记忆（WM）在执行功能和流体智力中起着至关重要的作用，但尚未有研究表明其在以智力残疾（ID）为代表的流体智力薄弱的重要情况下的具体作用。此外，更新与其他WM函数之间的关系也没有深入考虑。目前的研究通过提出一系列的WM任务（不同程度的主动注意力控制要求）和一个更新任务，对ID个体和典型的发展中儿童群体进行测试，以匹配流体智力表现。结果ID个体组与儿童组的比较表明，尽管在Raven测试上是匹配的，但更新测量显着区分了组和WM复杂跨度。此外，更新被证明是在群体间区分中最强大的任务。结论我们的研究结果证实了主动注意控制需求在解释WM在流体智力表现中的作用中的重要性，特别是WM的信息更新在正常发育儿童和ID个体之间的差异中起着重要作用。
BackgroundDespite the critical role attributed to working memory (WM) updating for executive functions and fluid intelligence, no research has yet been carried out on its specific role in the vital case of fluid intelligence weakness, represented by individuals with intellectual disability (ID). Furthermore, the relationship between updating and other WM functions has not been considered in depth.MethodThe current study examines these areas by proposing a battery of WM tasks (varying in degree of active attentional control requested) and one updating task to groups of ID individuals and typically developing children, matched for fluid intelligence performance.ResultsComparison between the group of ID individuals and a group of children showed that, despite being matched on the Raven test, the updating measure significantly differentiated the groups as well as the WM complex span. Furthermore, updating proved to be the task with the greatest power in discriminating between groups.ConclusionsOur results confirm the importance of the demand for active attentional control in explaining the role of WM in fluid intelligence performance, and in particular show that updating information in WM plays an important role in the distinction between typically developing children and ID individuals.