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Accelerated long-term forgetting in children with temporal lobe epilepsy: A timescale investigation of material specificity and executive skills
Journal article   Peer reviewed

Accelerated long-term forgetting in children with temporal lobe epilepsy: A timescale investigation of material specificity and executive skills

Samantha Joplin, Michael Gascoigne, Belinda Barton, Richard Webster, Deepak Gill, John A Lawson, Anna Mandalis, Mark Sabaz, Samantha McLean, Linda Gonzalez, …
Epilepsy & behavior, Vol.129, 108623
04/2022
DOI: https://doi.org/10.1016/j.yebeh.2022.108623
PMID: 35259627

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Abstract

Child Epilepsy, Temporal Lobe - complications Humans Memory Disorders - complications Memory Disorders - etiology Memory, Long-Term - physiology Memory, Short-Term Mental Recall - physiology Neuropsychological Tests
Recently, children with temporal lobe epilepsy (TLE) were found to be at risk of accelerated long-term forgetting (ALF). In this study, we examined the temporal trajectory of ALF, while exploring the relationship between ALF, executive skills, and epilepsy variables. Fifty-one children, (23 with TLE and 28 typically developing) completed a battery of neuropsychological tests of verbal and visual memory, executive skills, and two experimental memory tasks (verbal and visual) involving recall after short (30-min) and extended (1-day and 2-week) delays. Side of seizure focus and hippocampal integrity were considered. On the visual task (Scene Memory), children with TLE performed comparably to typically developing children following a 30-min and 1-day delay, although worse than typically developing children at 2 weeks: ALF was observed in children with right TLE focus. The two groups did not differ on the experimental verbal memory task. Children with TLE also had worse performance than typically developing children on standardized verbal memory test and on tests of executive skills (i.e., verbal generativity, inhibition, working memory, complex attention). Only complex attention was associated with visual ALF. ALF was present for visuo-spatial materials in children with TLE at two weeks, and children with right TLE were most susceptible. A relationship was identified between complex attention and long-term forgetting. The findings extend our understanding of difficulties in long-term memory formation experienced by children with TLE.

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