Audiovisual Integration of Speech in a Patient with Broca’s Aphasia

Tobias Andersen, Randi Starrfelt

Research output: Contribution to journalJournal articleResearchpeer-review

303 Downloads (Pure)

Abstract

Lesions to Broca's area cause aphasia characterized by a severe impairment of the ability to speak, with comparatively intact speech perception. However, some studies have found effects on speech perception under adverse listening conditions, indicating that Broca's area is also involved in speech perception. While these studies have focused on auditory speech perception other studies have shown that Broca's area is activated by visual speech perception. Furthermore, one preliminary report found that a patient with Broca's aphasia did not experience the McGurk illusion suggesting that an intact Broca's area is necessary for audiovisual integration of speech. Here we describe a patient with Broca's aphasia who experienced the McGurk illusion. This indicates that an intact Broca's area is not necessary for audiovisual integration of speech. The McGurk illusions this patient experienced were atypical, which could be due to Broca's area having a more subtle role in audiovisual integration of speech. The McGurk illusions of a control subject with Wernicke's aphasia were, however, also atypical. This indicates that the atypical McGurk illusions were due to deficits in speech processing that are not specific to Broca's aphasia.
Original languageEnglish
Article number435
JournalFrontiers in Psychology
Volume6
Pages (from-to)1-10
Number of pages11
ISSN1664-1078
DOIs
Publication statusPublished - 2015

Bibliographical note

Copyright © 2015 Andersen and Starrfelt. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

Fingerprint Dive into the research topics of 'Audiovisual Integration of Speech in a Patient with Broca’s Aphasia'. Together they form a unique fingerprint.

Cite this