Neural competition between concurrent speech production and other speech perception
Understanding others’ speech while individuals simultaneously produce speech utterances implies neural competition and requires specific mechanisms for a neural resolution given that previous studies proposed opposing signal dynamics for both processes in the auditory cortex (AC). We here used neuro...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-03-01
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| Series: | NeuroImage |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1053811920311952 |
| _version_ | 1818416578846261248 |
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| author | Joris Dietziker Matthias Staib Sascha Frühholz |
| author_facet | Joris Dietziker Matthias Staib Sascha Frühholz |
| author_sort | Joris Dietziker |
| collection | DOAJ |
| description | Understanding others’ speech while individuals simultaneously produce speech utterances implies neural competition and requires specific mechanisms for a neural resolution given that previous studies proposed opposing signal dynamics for both processes in the auditory cortex (AC). We here used neuroimaging in humans to investigate this neural competition by lateralized stimulations with other speech samples and ipsilateral or contralateral lateralized feedback of actively produced self speech utterances in the form of various speech vowels. In experiment 1, we show, first, that others’ speech classifications during active self speech lead to activity in the planum temporale (PTe) when both self and other speech samples were presented together to only the left or right ear. The contralateral PTe also seemed to indifferently respond to single self and other speech samples. Second, specific activity in the left anterior superior temporal cortex (STC) was found during dichotic stimulations (i.e. self and other speech presented to separate ears). Unlike previous studies, this left anterior STC activity supported self speech rather than other speech processing. Furthermore, right mid and anterior STC was more involved in other speech processing. These results signify specific mechanisms for self and other speech processing in the left and right STC beyond a more general speech processing in PTe. Third, other speech recognition in the context of listening to recorded self speech in experiment 2 led to largely symmetric activity in STC and additionally in inferior frontal subregions. The latter was previously reported to be generally relevant for other speech perception and classification, but we found frontal activity only when other speech classification was challenged by recorded but not by active self speech samples. Altogether, unlike formerly established brain networks for uncompetitive other speech perception, active self speech during other speech perception seemingly leads to a neural reordering, functional reassignment, and unusual lateralization of AC and frontal brain activations. |
| first_indexed | 2024-12-14T11:53:07Z |
| format | Article |
| id | doaj.art-b916c3c5b34f430b8fc4c40f4e872a70 |
| institution | Directory Open Access Journal |
| issn | 1095-9572 |
| language | English |
| last_indexed | 2024-12-14T11:53:07Z |
| publishDate | 2021-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | NeuroImage |
| spelling | doaj.art-b916c3c5b34f430b8fc4c40f4e872a702022-12-21T23:02:14ZengElsevierNeuroImage1095-95722021-03-01228117710Neural competition between concurrent speech production and other speech perceptionJoris Dietziker0Matthias Staib1Sascha Frühholz2Cognitive and Affective Neuroscience Unit, University of Zurich, Zurich, Switzerland; Corresponding authors.Cognitive and Affective Neuroscience Unit, University of Zurich, Zurich, Switzerland; Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, SwitzerlandCognitive and Affective Neuroscience Unit, University of Zurich, Zurich, Switzerland; Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland; Center for the Interdisciplinary Study of Language Evolution (ISLE), University of Zurich, Switzerland; Department of Psychology, University of Oslo, Norway; Corresponding authors.Understanding others’ speech while individuals simultaneously produce speech utterances implies neural competition and requires specific mechanisms for a neural resolution given that previous studies proposed opposing signal dynamics for both processes in the auditory cortex (AC). We here used neuroimaging in humans to investigate this neural competition by lateralized stimulations with other speech samples and ipsilateral or contralateral lateralized feedback of actively produced self speech utterances in the form of various speech vowels. In experiment 1, we show, first, that others’ speech classifications during active self speech lead to activity in the planum temporale (PTe) when both self and other speech samples were presented together to only the left or right ear. The contralateral PTe also seemed to indifferently respond to single self and other speech samples. Second, specific activity in the left anterior superior temporal cortex (STC) was found during dichotic stimulations (i.e. self and other speech presented to separate ears). Unlike previous studies, this left anterior STC activity supported self speech rather than other speech processing. Furthermore, right mid and anterior STC was more involved in other speech processing. These results signify specific mechanisms for self and other speech processing in the left and right STC beyond a more general speech processing in PTe. Third, other speech recognition in the context of listening to recorded self speech in experiment 2 led to largely symmetric activity in STC and additionally in inferior frontal subregions. The latter was previously reported to be generally relevant for other speech perception and classification, but we found frontal activity only when other speech classification was challenged by recorded but not by active self speech samples. Altogether, unlike formerly established brain networks for uncompetitive other speech perception, active self speech during other speech perception seemingly leads to a neural reordering, functional reassignment, and unusual lateralization of AC and frontal brain activations.http://www.sciencedirect.com/science/article/pii/S1053811920311952SpeechVoiceLanguagefMRIAuditory cortex |
| spellingShingle | Joris Dietziker Matthias Staib Sascha Frühholz Neural competition between concurrent speech production and other speech perception NeuroImage Speech Voice Language fMRI Auditory cortex |
| title | Neural competition between concurrent speech production and other speech perception |
| title_full | Neural competition between concurrent speech production and other speech perception |
| title_fullStr | Neural competition between concurrent speech production and other speech perception |
| title_full_unstemmed | Neural competition between concurrent speech production and other speech perception |
| title_short | Neural competition between concurrent speech production and other speech perception |
| title_sort | neural competition between concurrent speech production and other speech perception |
| topic | Speech Voice Language fMRI Auditory cortex |
| url | http://www.sciencedirect.com/science/article/pii/S1053811920311952 |
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