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Parallel or sequential? Decoding conceptual and phonological/phonetic information from MEG signals during language production.

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Title: Parallel or sequential? Decoding conceptual and phonological/phonetic information from MEG signals during language production.
Authors: Carota, Francesca (AUTHOR), Schoffelen, Jan-Mathijs (AUTHOR), Oostenveld, Robert (AUTHOR), Indefrey, Peter (AUTHOR)
Source: Cognitive Neuropsychology. Jul-Sep2023, Vol. 40 Issue 5/6, p298-317. 20p.
Subjects: Phonological decoding, Temporal lobe, Motor cortex, Phonological encoding, Multivariate analysis, Fusiform gyrus, Gray matter (Nerve tissue)
Abstract: Speaking requires the temporally coordinated planning of core linguistic information, from conceptual meaning to articulation. Recent neurophysiological results suggested that these operations involve a cascade of neural events with subsequent onset times, whilst competing evidence suggests early parallel neural activation. To test these hypotheses, we examined the sources of neuromagnetic activity recorded from 34 participants overtly naming 134 images from 4 object categories (animals, tools, foods and clothes). Within each category, word length and phonological neighbourhood density were co-varied to target phonological/phonetic processes. Multivariate pattern analyses (MVPA) searchlights in source space decoded object categories in occipitotemporal and middle temporal cortex, and phonological/phonetic variables in left inferior frontal (BA 44) and motor cortex early on. The findings suggest early activation of multiple variables due to intercorrelated properties and interactivity of processing, thus raising important questions about the representational properties of target words during the preparatory time enabling overt speaking. [ABSTRACT FROM AUTHOR]
Copyright of Cognitive Neuropsychology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Parallel or sequential? Decoding conceptual and phonological/phonetic information from MEG signals during language production.
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  Data: <searchLink fieldCode="AR" term="%22Carota%2C+Francesca%22">Carota, Francesca</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Schoffelen%2C+Jan-Mathijs%22">Schoffelen, Jan-Mathijs</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Oostenveld%2C+Robert%22">Oostenveld, Robert</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Indefrey%2C+Peter%22">Indefrey, Peter</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Cognitive+Neuropsychology%22">Cognitive Neuropsychology</searchLink>. Jul-Sep2023, Vol. 40 Issue 5/6, p298-317. 20p.
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  Data: <searchLink fieldCode="DE" term="%22Phonological+decoding%22">Phonological decoding</searchLink><br /><searchLink fieldCode="DE" term="%22Temporal+lobe%22">Temporal lobe</searchLink><br /><searchLink fieldCode="DE" term="%22Motor+cortex%22">Motor cortex</searchLink><br /><searchLink fieldCode="DE" term="%22Phonological+encoding%22">Phonological encoding</searchLink><br /><searchLink fieldCode="DE" term="%22Multivariate+analysis%22">Multivariate analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Fusiform+gyrus%22">Fusiform gyrus</searchLink><br /><searchLink fieldCode="DE" term="%22Gray+matter+%28Nerve+tissue%29%22">Gray matter (Nerve tissue)</searchLink>
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  Data: Speaking requires the temporally coordinated planning of core linguistic information, from conceptual meaning to articulation. Recent neurophysiological results suggested that these operations involve a cascade of neural events with subsequent onset times, whilst competing evidence suggests early parallel neural activation. To test these hypotheses, we examined the sources of neuromagnetic activity recorded from 34 participants overtly naming 134 images from 4 object categories (animals, tools, foods and clothes). Within each category, word length and phonological neighbourhood density were co-varied to target phonological/phonetic processes. Multivariate pattern analyses (MVPA) searchlights in source space decoded object categories in occipitotemporal and middle temporal cortex, and phonological/phonetic variables in left inferior frontal (BA 44) and motor cortex early on. The findings suggest early activation of multiple variables due to intercorrelated properties and interactivity of processing, thus raising important questions about the representational properties of target words during the preparatory time enabling overt speaking. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Cognitive Neuropsychology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1080/02643294.2023.2283239
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      – Code: eng
        Text: English
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      – SubjectFull: Motor cortex
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      – SubjectFull: Multivariate analysis
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              Text: Jul-Sep2023
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              Y: 2023
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