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Supplementary Motor Area Activation in Disfluency Perception: An fMRI Study of Listener Neural Responses to Spontaneously Produced Unfilled and Filled Pauses
Linköping University, Department of Culture and Communication, Language and Culture. Linköping University, Faculty of Arts and Sciences.ORCID iD: 0000-0003-3734-0757
Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden / Osher Center for Integrative Medicine, Karolinska Institute, Stockholm, Sweden.
2016 (English)In: Interspeech 2016 8-12 Sep 2016, San Francisco / [ed] Nelson Morgan, ISCA-INT SPEECH COMMUNICATION ASSOC , 2016, p. 1378-1381Conference paper, Published paper (Refereed)
Abstract [en]

Spontaneously produced Unfilled Pauses (UPs) and Filled Pauses (FPs) were played to subjects in an fMRI experiment. For both stimuli increased activity was observed in the Primary Auditory Cortex (PAC). However, FPs, but not UPs, elicited modulation in the Supplementary Motor Area (SMA), Brodmann Area 6. Our results provide neurocognitive confirmation of the alleged difference between FPs and other kinds of speech disfluency and could also provide a partial explanation for the previously reported beneficial effect of FPs on reaction times in speech perception. Our results also have potential implications for two of the suggested functions of FPs: the “floor-holding” and the “help-me-out” hypotheses.

Place, publisher, year, edition, pages
ISCA-INT SPEECH COMMUNICATION ASSOC , 2016. p. 1378-1381
Series
Proceedings in ISCA Archive / Proceedings USB, ISSN 1990-9770, E-ISSN 2308-457X
National Category
General Language Studies and Linguistics
Identifiers
URN: urn:nbn:se:liu:diva-135032DOI: 10.21437/Interspeech.2016-973ISI: 000409394400288OAI: oai:DiVA.org:liu-135032DiVA, id: diva2:1078880
Conference
Understanding Speech Processing in Humans and Machines, September 8-12, 2016, The Hyatt Regency, San Francisco, California, USA
Available from: 2017-03-07 Created: 2017-03-07 Last updated: 2018-01-13Bibliographically approved

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