Mary Lou Smith1, Suncica Lah. 1. Department of Psychology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada. marylou.smith@utoronto.ca
Abstract
OBJECTIVE: This study explored verbal semantic and episodic memory in children with unilateral temporal lobe epilepsy to determine whether they had impairments in both or only 1 aspect of memory, and to examine relations between performance in the 2 domains. METHOD: Sixty-six children and adolescents (37 with seizures of left temporal lobe onset, 29 with right-sided onset) were given 4 tasks assessing different aspects of semantic memory (picture naming, fluency, knowledge of facts, knowledge of word meanings) and 2 episodic memory tasks (story recall, word list recall). RESULTS: High rates of impairments were observed across tasks, and no differences were found related to the laterality of the seizures. Individual patient analyses showed that there was a double dissociation between the 2 aspects of memory in that some children were impaired on episodic but not semantic memory, whereas others showed intact episodic but impaired semantic memory. CONCLUSIONS: This double dissociation suggests that these 2 memory systems may develop independently in the context of temporal lobe pathology, perhaps related to differential effects of dysfunction in the lateral and mesial temporal lobe structures. PsycINFO Database Record (c) 2011 APA, all rights reserved.
OBJECTIVE: This study explored verbal semantic and episodic memory in children with unilateral temporal lobe epilepsy to determine whether they had impairments in both or only 1 aspect of memory, and to examine relations between performance in the 2 domains. METHOD: Sixty-six children and adolescents (37 with seizures of left temporal lobe onset, 29 with right-sided onset) were given 4 tasks assessing different aspects of semantic memory (picture naming, fluency, knowledge of facts, knowledge of word meanings) and 2 episodic memory tasks (story recall, word list recall). RESULTS: High rates of impairments were observed across tasks, and no differences were found related to the laterality of the seizures. Individual patient analyses showed that there was a double dissociation between the 2 aspects of memory in that some children were impaired on episodic but not semantic memory, whereas others showed intact episodic but impaired semantic memory. CONCLUSIONS: This double dissociation suggests that these 2 memory systems may develop independently in the context of temporal lobe pathology, perhaps related to differential effects of dysfunction in the lateral and mesial temporal lobe structures. PsycINFO Database Record (c) 2011 APA, all rights reserved.
Authors: Lisa Bartha-Doering; Astrid Novak; Kathrin Kollndorfer; Gregor Kasprian; Anna-Lisa Schuler; Madison M Berl; Florian Ph S Fischmeister; William D Gaillard; Johanna Alexopoulos; Daniela Prayer; Rainer Seidl Journal: Brain Lang Date: 2018-06-15 Impact factor: 2.381
Authors: Marla J Hamberger; William S MacAllister; William T Seidel; Robyn M Busch; Christine M Salinas; Patricia Klaas; Mary Lou Smith Journal: Neurology Date: 2018-12-05 Impact factor: 11.800
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