Journal
NEUROPSYCHOLOGY REVIEW
Volume 31, Issue 4, Pages 569-609Publisher
SPRINGER
DOI: 10.1007/s11065-021-09491-7
Keywords
Working memory; Epilepsy; Academics; Pediatric; Phonological Loop; Visuospatial Sketchpad; Central Executive
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Funding
- Australian Government
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Working memory is a multicomponent system in the brain that is supported by overlapping specialized networks. Baddeley's model includes four components. The review found significant impairments in phonological loop, visuo-spatial sketchpad, and central executive components in children with epilepsy.
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.
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