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  • Time-based prospective memory in children and adolescents with traumatic brain injury: Impact of working memory demands

    Author(s)
    Phillips, Natalie Lynette
    Shum, David HK
    Mandalis, Anna
    Parry, Louise
    Benson, Suzanne
    Morrow, Angie
    Epps, Adrienne
    Lah, Suncica
    Griffith University Author(s)
    Shum, David
    Year published
    2018
    Metadata
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    Abstract
    Objective: Difficulties with prospective memory are frequently reported following pediatric traumatic brain injury (TBI), but rarely researched. We aimed to (i) investigate time-based prospective memory post-pediatric TBI; (ii) examine whether time-based prospective memory is differentially impacted by the demand placed on working memory; and (iii) explore which components of working memory (viz., central executive, phonological loop, and visuospatial sketchpad) are involved in time-based prospective memory under low and high cognitive load following pediatric TBI. Method: Thirty-nine children and adolescents (20 survivors ...
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    Objective: Difficulties with prospective memory are frequently reported following pediatric traumatic brain injury (TBI), but rarely researched. We aimed to (i) investigate time-based prospective memory post-pediatric TBI; (ii) examine whether time-based prospective memory is differentially impacted by the demand placed on working memory; and (iii) explore which components of working memory (viz., central executive, phonological loop, and visuospatial sketchpad) are involved in time-based prospective memory under low and high cognitive load following pediatric TBI. Method: Thirty-nine children and adolescents (20 survivors of moderate–severe TBI and 19 healthy controls) completed (i) a newly developed time-based prospective memory task (TBPMT), embedded in an ongoing lexical-decision task, with two conditions: low and high working memory load; and (ii) tests of working memory components from the Automated Working Memory Assessment. Results: Compared to controls, participants with TBI had significantly lower prospective memory accuracy on the TBPMT across working memory loads (low, high). In contrast, the groups did not differ in time monitoring or accuracy on the ongoing task. In the TBI group, higher scores on tests of the central executive (but not phonological loop or visuospatial sketchpad) were associated with higher prospective memory accuracy and time monitoring (controlling for age). Conclusions: Time-based prospective memory is impaired following moderate–severe pediatric TBI, irrespective of the level of working memory demand. Our findings suggest that children and adolescents with TBI may be at risk of failing to perform future intentions at the right time in daily life, especially for individuals identified as having deficits in central executive functioning.
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    Journal Title
    Neuropsychology
    Volume
    32
    Issue
    5
    DOI
    https://doi.org/10.1037/neu0000468
    Subject
    Neurosciences
    Psychology
    Cognitive Sciences
    Publication URI
    http://hdl.handle.net/10072/383399
    Collection
    • Journal articles

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