Looking for a Location: Dissociated Effects of Event-Related Plausibility and Verb–Argument Information on Predictive Processing in Aphasia Purpose This study examined the influence of verb–argument information and event-related plausibility on prediction of upcoming event locations in people with aphasia, as well as older and younger, neurotypical adults. It investigated how these types of information interact during anticipatory processing and how the ability to take advantage of the ... Research Article
Research Article  |   December 01, 2016
Looking for a Location: Dissociated Effects of Event-Related Plausibility and Verb–Argument Information on Predictive Processing in Aphasia
 
Author Affiliations & Notes
  • Rebecca A. Hayes
    University of Pittsburgh, PA
  • Michael Walsh Dickey
    University of Pittsburgh, PA
    VA Pittsburgh Healthcare System, PA
  • Tessa Warren
    University of Pittsburgh, PA
  • Disclosure: The authors have declared that no competing interests existed at the time of publication.
    Disclosure: The authors have declared that no competing interests existed at the time of publication. ×
  • Correspondence to Rebecca A. Hayes: rahayes89@gmail.com
  • Editor: Anastasia Raymer
    Editor: Anastasia Raymer×
  • Associate Editor: Yasmeen Faroqi-Shah
    Associate Editor: Yasmeen Faroqi-Shah×
Article Information
Language Disorders / Aphasia / Supplement: Select Papers From the 45th Clinical Aphasiology Conference / Research Articles
Research Article   |   December 01, 2016
Looking for a Location: Dissociated Effects of Event-Related Plausibility and Verb–Argument Information on Predictive Processing in Aphasia
American Journal of Speech-Language Pathology, December 2016, Vol. 25, S758-S775. doi:10.1044/2016_AJSLP-15-0145
History: Received September 16, 2015 , Revised April 5, 2016 , Accepted June 1, 2016
 
American Journal of Speech-Language Pathology, December 2016, Vol. 25, S758-S775. doi:10.1044/2016_AJSLP-15-0145
History: Received September 16, 2015; Revised April 5, 2016; Accepted June 1, 2016

Purpose This study examined the influence of verb–argument information and event-related plausibility on prediction of upcoming event locations in people with aphasia, as well as older and younger, neurotypical adults. It investigated how these types of information interact during anticipatory processing and how the ability to take advantage of the different types of information is affected by aphasia.

Method This study used a modified visual-world task to examine eye movements and offline photo selection. Twelve adults with aphasia (aged 54–82 years) as well as 44 young adults (aged 18–31 years) and 18 older adults (aged 50–71 years) participated.

Results Neurotypical adults used verb argument status and plausibility information to guide both eye gaze (a measure of anticipatory processing) and image selection (a measure of ultimate interpretation). Argument status did not affect the behavior of people with aphasia in either measure. There was only limited evidence of interaction between these 2 factors in eye gaze data.

Conclusions Both event-related plausibility and verb-based argument status contributed to anticipatory processing of upcoming event locations among younger and older neurotypical adults. However, event-related likelihood had a much larger role in the performance of people with aphasia than did verb-based knowledge regarding argument structure.

Acknowledgments
This research was supported by the National Institutes of Health Grant R01DC011520 (awarded to Rebecca A. Hayes and Michael Walsh Dickey) and Grant UL1TR000005 (awarded to the Clinical and Translational Science Institute of the University of Pittsburgh, PA. This research was the result of work supported with resources and the use of facilities at the VA Pittsburgh Healthcare System, PA.
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