Year: 2008
Type: article
Abstract: 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.
Author: Sarah J. Tlustos
Institution: University of Cincinnati
Language: English
Subfield: Speech and Hearing
Field: Health Professions
Domain: Health Sciences
Open Access status: green
OpenAlex ID: W2594973973