Comprehending auditory speech: previous and potential contributions of functional MRI

Evans, S. and McGettigan, C. 2017. Comprehending auditory speech: previous and potential contributions of functional MRI. Language, Cognition and Neuroscience. 32 (7), pp. 829-846. doi:10.1080/23273798.2016.1272703

TitleComprehending auditory speech: previous and potential contributions of functional MRI
AuthorsEvans, S. and McGettigan, C.
Abstract

Functional neuroimaging revolutionised the study of human language in the late twentieth century, allowing researchers to investigate its underlying cognitive processes in the intact brain. Here, we review how functional MRI (fMRI) in particular has contributed to our understanding of speech comprehension, with a focus on studies of intelligibility. We highlight the use of carefully controlled acoustic stimuli to reveal the underlying hierarchical organisation of speech processing systems and cortical (a)symmetries, and discuss the contributions of novel design and analysis techniques to the contextualisation of perisylvian regions within wider speech processing networks. Within this, we outline the methodological challenges of fMRI as a technique for investigating speech and describe the innovations that have overcome or mitigated these difficulties. Focussing on multivariate approaches to fMRI, we highlight how these techniques have allowed both local neural representations and broader scale brain systems to be described.

KeywordsSpeech, language, brain, fMRI, perception
JournalLanguage, Cognition and Neuroscience
Journal citation32 (7), pp. 829-846
ISSN2327-3798
Year2017
PublisherTaylor & Francis
Accepted author manuscriptLCN_Evans_McGettigan_accepted.pdf
Digital Object Identifier (DOI)doi:10.1080/23273798.2016.1272703
Publication dates
Published online09 Jan 2017
Published09 Jan 2017

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