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Neurocognitive substrates of naming facilitation in aphasia

Title
Neurocognitive substrates of naming facilitation in aphasia
Funding
ARC | Discovery Projects
Contract (GA) number
DP0880556
Start Date
2008/01/01
End Date
2010/12/31
Open Access mandate
no
Organizations
-
More information
http://purl.org/au-research/grants/arc/DP0880556

 

  • Priming Picture Naming with a Semantic Task: An fMRI Investigation

    Heath, Shiree; McMahon, Katie; Nickels, Lyndsey; Angwin, Anthony; MacDonald, Anna; van Hees, Sophia; Johnson, Kori; Copland, David (2012)
    Projects: ARC | Neurocognitive substrates of naming facilitation in aphasia (DP0880556)
    Prior semantic processing can enhance subsequent picture naming performance, yet the neurocognitive mechanisms underlying this effect and its longevity are unknown. This functional magnetic resonance imaging study examined whether different neurological mechanisms underlie short-term (within minutes) and long-term (within days) facilitation effects from a semantic task in healthy older adults. Both short- and long-term facilitated items were named significantly faster than unfacilitated items...

    Neural mechanisms underlying the facilitation of naming in aphasia using a semantic task: an fMRI study

    Heath Shiree; McMahon Katie L; Nickels Lyndsey; Angwin Anthony; MacDonald Anna D; van Hees Sophia; Johnson Kori; McKinnon Eril; Copland David A (2012)
    Projects: ARC | Neurocognitive substrates of naming facilitation in aphasia (DP0880556)
    Abstract Background Previous attempts to investigate the effects of semantic tasks on picture naming in both healthy controls and people with aphasia have typically been confounded by inclusion of the phonological word form of the target item. As a result, it is difficult to isolate any facilitatory effects of a semantically-focused task to either lexical-semantic or phonological processing. This functional magnetic resonance imaging (fMRI) study examined the neurological mechanisms underlyin...

    An fMRI investigation of the effects of attempted naming on word retrieval in aphasia

    Heath, Shiree; McMahon, Katie L.; Nickels, Lyndsey A.; Angwin, Anthony; MacDonald, Anna D.; van Hees, Sophia; McKinnon, Eril; Johnson, Kori; Copland, David A. (2015)
    Projects: ARC | Neurocognitive substrates of naming facilitation in aphasia (DP0880556)
    In healthy controls, picture naming performance can be facilitated by a single prior exposure to the same picture (“priming”). This priming phenomenon is utilized in the treatment of aphasia, which often includes repeated picture naming as part of a therapeutic task. The current study sought to determine whether single and/or multiple exposures facilitate subsequent naming in aphasia and whether such facilitatory effects act through normal priming mechanisms. A functional magnetic resonance i...

    The neural correlates of picture naming facilitated by auditory repetition

    Heath, Shiree; McMahon, Katie; Nickels, Lyndsey; Angwin, Anthony; MacDonald, Anna; van Hees, Sophia; Johnson, Kori; Copland, David (2012)
    Projects: ARC | Neurocognitive substrates of naming facilitation in aphasia (DP0880556)
    Abstract Background Overt repetition of auditorily presented words can facilitate picture naming performance in both unimpaired speakers and individuals with word retrieval difficulties, but the underlying neurocognitive mechanisms and longevity of such effects remain unclear. This study used functional magnetic resonance imaging to examine whether different neurological mechanisms underlie short-term (within minutes) and long-term (within days) facilitation effects from an auditory repetitio...
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