Format

Send to

Choose Destination
Res Dev Disabil. 2016 Dec;59:147-165. doi: 10.1016/j.ridd.2016.08.001. Epub 2016 Sep 7.

Working memory studies among individuals with intellectual disability: An integrative research review.

Author information

1
School of Education, Bar-Ilan University, Ramat-Gan, Israel. Electronic address: hefziba@013net.net.
2
Head of Children Development Center, Ramlee, Israel.
3
Department of Psychology and Leslie and Susan Gonda (Goldschmied) Multidisciplinary Brain Research Centre, Bar-Ilan University, Ramat-Gan, Israel.

Abstract

BACKGROUND:

Integrative research review infers generalizations about a substantive subject, summarizes the accumulated knowledge that research has left unresolved and generates a new framework on these issues. Due to methodological issues emerging from working memory (WM) studies in the population with non-specific intellectual disability (NSID) (N=64) between 1990-2014, it is difficult to conclude on WM performance in this population.

AIM:

This integrative research review aimed to resolve literature conflicts on WM performance among individuals with NSID and to identify the conditions/moderators that govern their WM performance compared to controls with Typical development.

METHOD/PROCEDURE:

We used the six stages of integrative research review: problem formulation, data collection, evaluation, data analysis, results, interpretation and discussion.

OUTCOMES AND RESULTS:

The findings indicate two types of moderators that determine WM performance in the population with NSID: Participants' moderators (criteria for matching the ID and TD groups, CA and MA), and task moderators [the three WM components of Baddeley and Hitch's (1974) model and task load]. Only an interaction between the two moderators determines WM performance in this population. The findings indicate a hierarchy (from more to less preserved) in WM performance of individuals with NSID: The visuospatial tasks, then some of the executive functions tasks, and the phonological loop tasks being less preserved. Furthermore, at a low level of control, the performance of participants with NSID was preserved beyond the modality and vice versa.

CONCLUSIONS AND IMPLICATIONS:

Modality and MA/intelligence determine WM performance of individuals with ID. Educators should prepare intervention programs take the impact of the two moderators into account.

KEYWORDS:

Baddeley and hitch model; Population with NSID; Research review; Vertical-Horizontal Model; Working memory studies

PMID:
27614274
DOI:
10.1016/j.ridd.2016.08.001
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center