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Meta-Analysis
. 2021 Dec;31(4):569-609.
doi: 10.1007/s11065-021-09491-7. Epub 2021 Apr 5.

Working Memory in Pediatric Epilepsy: A Systematic Review and Meta-Analysis

Belinda J Poole  1   2 , Natalie L Phillips  1   2 , Elizabeth Stewart  1   2 , Irina M Harris  1 , Suncica Lah  3   4
Affiliations
Meta-Analysis

Working Memory in Pediatric Epilepsy: A Systematic Review and Meta-Analysis

Belinda J Poole et al. Neuropsychol Rev. 2021 Dec.

Abstract

Working memory is a multicomponent system that is supported by overlapping specialized networks in the brain. Baddeley's working memory model includes four components: the phonological loop, visuo-spatial sketchpad, the central executive, and episodic buffer. The aim of this review was to establish the gravity and pattern of working memory deficits in pediatric epilepsy. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement guided electronic searches. Sixty-five studies were included in the review. Meta-analyses revealed significant impairments across each working memory component: phonological loop (g = 0.739), visuo-spatial sketchpad (g = 0.521), and central executive (g = 0.560) in children with epilepsy compared to controls. The episodic buffer was not examined. The pattern of impairments, however, differed according to the site and side of seizure focus. This suggests that working memory components are differentially vulnerable to the location of seizure focus in the developing brain.

Keywords: Academics; Central Executive; Epilepsy; Pediatric; Phonological Loop; Visuospatial Sketchpad; Working memory.

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