Similar digit-based working memory in deaf signers and hearing non-signers despite digit span differences

Josefine Andin, Eleni Orfanidou, Velia Cardin, Emil Holmer, Cheryl M. Capek, Bencie Woll, Jerker Rönnberg, Mary Rudner

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Similar working memory (WM) for lexical items has been demonstrated for signers and non-signers while short-term memory (STM) is regularly poorer in deaf than hearing individuals. In the present study, we investigated digit-based WM and STM in Swedish and British deaf signers and hearing non-signers. To maintain good experimental control we used printed stimuli throughout and held response mode constant across groups. We showed that deaf signers have similar digit-based WM performance, despite shorter digit spans, compared to well-matched hearing non-signers. We found no difference between signers and non-signers on STM span for letters chosen to minimize phonological similarity or in the effects of recall direction. This set of findings indicates that similar WM for signers and non-signers can be generalized from lexical items to digits and suggests that poorer STM in deaf signers compared to hearing non-signers may be due to differences in phonological similarity across the language modalities of sign and speech. © 2013 Andin, Orfanidou, Cardin, Holmer, Capek, Woll, Rönnberg and Rudner.
    Original languageEnglish
    Article numberArticle 942
    JournalFrontiers in Psychology
    Volume4
    DOIs
    Publication statusPublished - 2013

    Keywords

    • Cross-culture
    • Deaf signers
    • Phonological similarity
    • Short-term memory
    • Working memory

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