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Simulating Speech Comprehension Using a Cochlear Implant: A Brain Imaging Study

Tlustos, Sarah J.
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1211806392

Abstract Details

2008, MA, University of Cincinnati, Arts and Sciences : Psychology.
Previous research has indicated that neurocognitive factors unrelated to hearing, such as working memory and attention, are important for successful comprehension of degraded speech. For individuals with cochlear implants (CI), who receive an imperfect auditory signal, it is important to understand the factors that lead to success in speech communication with a CI. In the current brain imaging experiment, eleven normal hearing adult participants listened to sentences that were either spoken naturally or digitally degraded to simulate speech heard through a CI. Participants judged the meaningfulness of semantically congruent and incongruent sentences. Brain imaging results suggest that individuals are less able to complete linguistic processing when speech is degraded and sentence meaning is ambiguous, and that higher-order cognitive processes play a significant role in comprehension of degraded speech. When unable to use context to help process difficult-to-understand speech in top-down fashion, resources may become stressed, resulting in less efficient processing.
C.-Y. Peter Chiu, PhD (Committee Chair)
Paula Shear, PhD (Committee Member)
Robert Stutz, PhD (Committee Member)
50 p.
Psychobiology
cochlear implants; language comprehension; functional magnetic resonance imaging; semantics

Recommended Citations

Citations

  • Tlustos, S. J. (2008). Simulating Speech Comprehension Using a Cochlear Implant: A Brain Imaging Study [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1211806392

    APA Style (7th edition)

  • Tlustos, Sarah. Simulating Speech Comprehension Using a Cochlear Implant: A Brain Imaging Study. 2008. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1211806392.

    MLA Style (8th edition)

  • Tlustos, Sarah. "Simulating Speech Comprehension Using a Cochlear Implant: A Brain Imaging Study." Master's thesis, University of Cincinnati, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1211806392

    Chicago Manual of Style (17th edition)

ucin1211806392
452
© 2008, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.