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Faster phonological processing and right occipito-temporal coupling in deaf adults signal poor cochlear implant outcome
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In: ISSN: 2041-1723 ; EISSN: 2041-1723 ; Nature Communications ; https://hal.sorbonne-universite.fr/hal-01502181 ; Nature Communications, Nature Publishing Group, 2017, 8, pp.14872. ⟨10.1038/ncomms14872⟩ (2017)
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Abstract:
International audience ; The outcome of adult cochlear implantation is predicted positively by the involvement of visual cortex in speech processing, and negatively by the cross-modal recruitment of the right temporal cortex during and after deafness. How these two neurofunctional predictors concur to modulate cochlear implant (CI) performance remains unclear. In this fMRI study, we explore the joint involvement of occipital and right hemisphere regions in a visual-based phonological task in post-lingual deafness. Intriguingly, we show that some deaf subjects perform faster than controls. This behavioural effect is associated with reorganized connectivity across bilateral visual, right temporal and left inferior frontal cortices, but with poor CI outcome. Conversely, preserved normal-range reaction times are associated with left-lateralized phonological processing and good CI outcome. These results suggest that following deafness, involvement of visual cortex in the context of reorganized right-lateralized phonological processing compromises its availability for audiovisual synergy during adaptation to CI.
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Keyword:
[SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]
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URL: https://hal.sorbonne-universite.fr/hal-01502181
https://hal.sorbonne-universite.fr/hal-01502181/file/ncomms14872.pdf
https://doi.org/10.1038/ncomms14872
https://hal.sorbonne-universite.fr/hal-01502181/document
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Faster phonological processing and right occipito-temporal coupling in deaf adults signal poor cochlear implant outcome
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In: ISSN: 2041-1723 ; Nature Communications, Vol. 8 (2017) P. 14872 (2017)
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Faster phonological processing and right occipito-temporal coupling in deaf adults signal poor cochlear implant outcome
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A Retrospective Multicenter Study Comparing Speech Perception Outcomes for Bilateral Implantation and Bimodal Rehabilitation ...
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A Retrospective Multicenter Study Comparing Speech Perception Outcomes for Bilateral Implantation and Bimodal Rehabilitation
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In: Blamey, Peter J; Maat, Bert; Başkent, Deniz; Mawman, Deborah; Burke, Elaine; Dillier, Norbert; Beynon, Andy; Kleine-Punte, Andrea; Govaerts, Paul J; Skarzynski, Piotr H; Huber, Alexander M; Sterkers-Artières, Françoise; Van de Heyning, Paul; O'Leary, Stephen; Fraysse, Bernard; Green, Kevin; Sterkers, Olivier; Venail, Frédéric; Skarzynski, Henryk; Vincent, Christophe; Truy, Eric; Dowell, Richard; Bergeron, François; Lazard, Diane S (2015). A Retrospective Multicenter Study Comparing Speech Perception Outcomes for Bilateral Implantation and Bimodal Rehabilitation. Ear and Hearing, 36(4):408-416. (2015)
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Adaptation of the communicative brain to post-lingual deafness. Evidence from functional imaging.
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In: ISSN: 0378-5955 ; Hearing Research ; https://hal.archives-ouvertes.fr/hal-00917093 ; Hearing Research, Elsevier, 2014, 307, pp.136-43. ⟨10.1016/j.heares.2013.08.006⟩ (2014)
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Bilateral reorganization of posterior temporal cortices in post-lingual deafness and its relation to cochlear implant outcome
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In: ISSN: 1065-9471 ; Human Brain Mapping, Vol. 34, No 5 (2013) pp. 1208-1219 (2013)
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