YEARS

2007-2010

AUTHORS

Joann P. Silkes

TITLE

Investigation of parameters of implicit priming in anomia

ABSTRACT

DESCRIPTION (provided by applicant): Current models of spoken language production postulate that the linguistic system is composed of a network of lexical and semantic nodes that automatically spread activation to each other as part of linguistic processing. This automatic spread of activation is implicit, in that it occurs outside of conscious awareness or control. Intact implicit processing is thought to underlie the automatic, fluent, rapid use of language in typical adults. Implicit processing is also a component of learning and, therefore, a component of any language rehabilitation that may be undertaken to remediate language deficits following stroke (i.e., aphasia). Previous research has raised the question of whether automatic activation of the linguistic system is preserved or impaired in aphasia. If there is a deficit in the spread of automatic activation in individuals with aphasia, this may underlie their language deficits, and/or may influence their response to treatment. The studies proposed here will investigate the nature of implicit learning, in the form of priming, in individuals with anomia, a ubiquitous symptom of aphasia. Using a masked priming picture naming paradigm, it will use accuracy and reaction time data to compare thresholds of explicit awareness in anomic and typical adults, and will compare the response of anomic and typical adults to implicit vs. explicit identity primes across three prime-target latencies. Findings from this research will inform our understanding of implicit, automatic activation processes in aphasia as they relate both to models of language use and to methods of learning in aphasia rehabilitation.

FUNDED PUBLICATIONS

  • Masked priming effects in aphasia: evidence of altered automatic spreading activation.
  • Perception of visually masked stimuli by individuals with aphasia: A methodological assessment and preliminary theoretical implications.
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    21 TRIPLES      17 PREDICATES      22 URIs      9 LITERALS

    Subject Predicate Object
    1 grants:2c75afafb2662a2f477e5220840f160c sg:abstract DESCRIPTION (provided by applicant): Current models of spoken language production postulate that the linguistic system is composed of a network of lexical and semantic nodes that automatically spread activation to each other as part of linguistic processing. This automatic spread of activation is implicit, in that it occurs outside of conscious awareness or control. Intact implicit processing is thought to underlie the automatic, fluent, rapid use of language in typical adults. Implicit processing is also a component of learning and, therefore, a component of any language rehabilitation that may be undertaken to remediate language deficits following stroke (i.e., aphasia). Previous research has raised the question of whether automatic activation of the linguistic system is preserved or impaired in aphasia. If there is a deficit in the spread of automatic activation in individuals with aphasia, this may underlie their language deficits, and/or may influence their response to treatment. The studies proposed here will investigate the nature of implicit learning, in the form of priming, in individuals with anomia, a ubiquitous symptom of aphasia. Using a masked priming picture naming paradigm, it will use accuracy and reaction time data to compare thresholds of explicit awareness in anomic and typical adults, and will compare the response of anomic and typical adults to implicit vs. explicit identity primes across three prime-target latencies. Findings from this research will inform our understanding of implicit, automatic activation processes in aphasia as they relate both to models of language use and to methods of learning in aphasia rehabilitation.
    2 sg:endYear 2010
    3 sg:fundingAmount 99972.0
    4 sg:fundingCurrency USD
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    10 sg:hasFundedPublication articles:0281eeb3b782f8c5c3b1f83e8211ec73
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    16 sg:scigraphId 2c75afafb2662a2f477e5220840f160c
    17 sg:startYear 2007
    18 sg:title Investigation of parameters of implicit priming in anomia
    19 sg:webpage http://projectreporter.nih.gov/project_info_description.cfm?aid=7558292
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    21 rdfs:label Grant: Investigation of parameters of implicit priming in anomia
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