دورية أكاديمية
Temporal lobe perceptual predictions for speech are instantiated in motor cortex and reconciled by inferior frontal cortex
العنوان: | Temporal lobe perceptual predictions for speech are instantiated in motor cortex and reconciled by inferior frontal cortex |
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المؤلفون: | Cope, Thomas E, Sohoglu, Ediz, Peterson, Katie A, Jones, P Simon, Rua, Catarina, Passamonti, Luca, Sedley, William, Post, Brechtje, Coebergh, Jan, Butler, Christopher R, Garrard, Peter, Abdel-Aziz, Khaled, Husain, Masud, Griffiths, Timothy D, Patterson, Karalyn, Davis, Matthew H, Rowe, James B |
بيانات النشر: | Elsevier BV |
سنة النشر: | 2023 |
المجموعة: | University of Sussex: Sussex Research Online |
الوصف: | Humans use predictions to improve speech perception, especially in noisy environments. Here we use 7-T functional MRI (fMRI) to decode brain representations of written phonological predictions and degraded speech signals in healthy humans and people with selective frontal neurodegeneration (non-fluent variant primary progressive aphasia [nfvPPA]). Multivariate analyses of item-specific patterns of neural activation indicate dissimilar representations of verified and violated predictions in left inferior frontal gyrus, suggestive of processing by distinct neural populations. In contrast, precentral gyrus represents a combination of phonological information and weighted prediction error. In the presence of intact temporal cortex, frontal neurodegeneration results in inflexible predictions. This manifests neurally as a failure to suppress incorrect predictions in anterior superior temporal gyrus and reduced stability of phonological representations in precentral gyrus. We propose a tripartite speech perception network in which inferior frontal gyrus supports prediction reconciliation in echoic memory, and precentral gyrus invokes a motor model to instantiate and refine perceptual predictions for speech. |
نوع الوثيقة: | article in journal/newspaper |
وصف الملف: | application/pdf |
اللغة: | English |
العلاقة: | http://sro.sussex.ac.uk/id/eprint/112547/4/1-s2.0-S2211124723004333-main.pdfTest; Cope, Thomas E, Sohoglu, Ediz, Peterson, Katie A, Jones, P Simon, Rua, Catarina, Passamonti, Luca, Sedley, William, Post, Brechtje, Coebergh, Jan, Butler, Christopher R, Garrard, Peter, Abdel-Aziz, Khaled, Husain, Masud, Griffiths, Timothy D, Patterson, Karalyn, Davis, Matthew H and Rowe, James B (2023) Temporal lobe perceptual predictions for speech are instantiated in motor cortex and reconciled by inferior frontal cortex. Cell Reports, 42 (5). a112422 1-24. ISSN 2211-1247 |
DOI: | 10.1016/j.celrep.2023.112422 |
الإتاحة: | https://doi.org/10.1016/j.celrep.2023.112422Test http://sro.sussex.ac.uk/id/eprint/112547Test/ http://sro.sussex.ac.uk/id/eprint/112547/4/1-s2.0-S2211124723004333-main.pdfTest |
حقوق: | cc_by_4 |
رقم الانضمام: | edsbas.4A4CC1E |
قاعدة البيانات: | BASE |
DOI: | 10.1016/j.celrep.2023.112422 |
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