Suppressing irrelevant information from working memory: Evidence for domain-specific deficits in poor comprehenders

Hannah Pimperton*, Kate Nation

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    77 Citations (Scopus)

    Abstract

    Previous research has suggested that children with specific reading comprehension deficits (poor comprehenders) show an impaired ability to suppress irrelevant information from working memory, with this deficit detrimentally impacting on their working memory ability, and consequently limiting their reading comprehension performance. However, the extent to which these suppression deficits are specific to the verbal domain has not yet been explored. Experiment 1 examined the memory profiles of poor comprehenders and demonstrated a memory deficit specific to working memory, and the verbal domain within working memory. Experiment 2 compared the same poor comprehenders and controls on both verbal and non-verbal versions of a proactive interference task designed to assess their ability to suppress no-longer-relevant information from working memory. The poor comprehenders showed domain-specific suppression deficits, demonstrating impairments relative to the controls only in the verbal version of the task. Experiment 3 replicated these findings after the response modes of the verbal and non-verbal tasks were equated, confirming the domain specificity of our sample of poor comprehenders' suppression deficits.

    Original languageEnglish
    Pages (from-to)380-391
    Number of pages12
    JournalJournal of Memory and Language
    Volume62
    Issue number4
    DOIs
    Publication statusPublished - May 2010

    Keywords

    • Cognitive inhibition
    • Domain specific
    • Poor comprehenders
    • Proactive interference
    • Reading comprehension
    • Suppression
    • Working memory

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