• myGriffith
    • Staff portal
    • Contact Us⌄
      • Future student enquiries 1800 677 728
      • Current student enquiries 1800 154 055
      • International enquiries +61 7 3735 6425
      • General enquiries 07 3735 7111
      • Online enquiries
      • Staff phonebook
    View Item 
    •   Home
    • Griffith Research Online
    • Journal articles
    • View Item
    • Home
    • Griffith Research Online
    • Journal articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

  • All of Griffith Research Online
    • Communities & Collections
    • Authors
    • By Issue Date
    • Titles
  • This Collection
    • Authors
    • By Issue Date
    • Titles
  • Statistics

  • Most Popular Items
  • Statistics by Country
  • Most Popular Authors
  • Support

  • Contact us
  • FAQs
  • Admin login

  • Login
  • Semantic Priming in Anomic Aphasia: a focused investigation using cross-modal methodology

    Thumbnail
    View/Open
    102656_1.pdf (148.7Kb)
    File version
    Accepted Manuscript (AM)
    Author(s)
    Howells, Simone R
    Cardell, Elizabeth A
    Griffith University Author(s)
    Howells, Simone R.
    Year published
    2015
    Metadata
    Show full item record
    Abstract
    Background: Semantic priming in individuals with anomic aphasia has never been the primary focus of an investigation. To date, one study investigated the effects of semantic priming in individuals with fluent aphasia (including anomic aphasia), revealing an inconsistency in semantic priming in the anomic group. Parallels from Broca’s aphasia and Wernicke’s aphasia literature may be drawn. However, due to the heterogeneity of anomic aphasia, a focused investigation was necessary. Aims: Semantic priming effects were investigated using a cross-modal pairwise paradigm. It was hypothesised that participants with anomic aphasia ...
    View more >
    Background: Semantic priming in individuals with anomic aphasia has never been the primary focus of an investigation. To date, one study investigated the effects of semantic priming in individuals with fluent aphasia (including anomic aphasia), revealing an inconsistency in semantic priming in the anomic group. Parallels from Broca’s aphasia and Wernicke’s aphasia literature may be drawn. However, due to the heterogeneity of anomic aphasia, a focused investigation was necessary. Aims: Semantic priming effects were investigated using a cross-modal pairwise paradigm. It was hypothesised that participants with anomic aphasia would demonstrate priming patterns at a stimulus onset asynchrony (SOA) of 500 ms with slower overall reaction times (RTs) than the control participants. It was further hypothesised that the participants with anomic aphasia might show less inhibition effects than the control participants. Methods & Procedures: Participants with anomic aphasia (n = 11) and healthy control participants (n = 16) completed a lexical decision task where prime–target pairs were present in equal proportions (related, unrelated, and nonwords). A neutral prime condition was also incorporated. Using a cross-modal pairwise paradigm, participants heard a spoken word 500 ms later, a written word appeared on screen (for 4000 ms). Participants were required to make a decision as to whether the written word was real, and RTs were recorded. Outcomes & Results: Linear mixed model analysis was undertaken and revealed no significant two-way interaction effect, indicating both groups showed priming patterns. A main effect of group was evident, showing faster RTs by the control participant group, confirming our hypothesis that people with anomic aphasia primed at an SOA of 500 ms in a similar manner to the control participants, with slower RTs. Conclusions: Semantic priming effects were present in anomic aphasia at relatively short SOAs and may be contributed to by automatic processes. Several parameters are proposed that should be adopted for further investigation into semantic priming in anomic aphasia including electrophysiological measures and manipulation of SOAs and relatedness proportions (RPs) to more precisely measure the effects of controlled versus automatic processes. Such investigation has the potential to inform new assessment and management techniques.
    View less >
    Journal Title
    Aphasiology
    Volume
    29
    Issue
    6
    DOI
    https://doi.org/10.1080/02687038.2014.985184
    Copyright Statement
    © 2015 Taylor & Francis (Routledge). This is an Accepted Manuscript of an article published by Taylor & Francis in Aphasiology on 16 Dec 2014, available online: http://www.tandfonline.com/doi/abs/10.1080/02687038.2014.985184
    Subject
    Clinical sciences
    Rehabilitation
    Neurosciences
    Cognitive and computational psychology
    Psycholinguistics (incl. speech production and comprehension)
    Allied health and rehabilitation science
    Publication URI
    http://hdl.handle.net/10072/139069
    Collection
    • Journal articles

    Footer

    Disclaimer

    • Privacy policy
    • Copyright matters
    • CRICOS Provider - 00233E
    • TEQSA: PRV12076

    Tagline

    • Gold Coast
    • Logan
    • Brisbane - Queensland, Australia
    First Peoples of Australia
    • Aboriginal
    • Torres Strait Islander