ERIC Number: EJ877691
Record Type: Journal
Publication Date: 2010-Apr
Abstractor: As Provided
Reference Count: 29
Difficulties in Working Memory Updating in Individuals with Intellectual Disability
Carretti, B.; Belacchi, C.; Cornoldi, C.
Journal of Intellectual Disability Research, v54 n4 p337-345 Apr 2010
Background: Despite 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. Method: The 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. Results: Comparison 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. Conclusions: Our 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.
Descriptors: Intelligence, Mental Retardation, Short Term Memory, Attention Control, Comparative Analysis, Children
Wiley-Blackwell. 350 Main Street, Malden, MA 02148. Tel: 800-835-6770; Tel: 781-388-8598; Fax: 781-388-8232; e-mail: email@example.com; Web site: http://www.wiley.com/WileyCDA/
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A