کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6024775 | 1580886 | 2015 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cross-modal reorganization in cochlear implant users: Auditory cortex contributes to visual face processing
ترجمه فارسی عنوان
سازماندهی مجدد در کاربران ایمپلنت کچلی: قشر شنوایی به پردازش چهره بصری کمک می کند
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کلمات کلیدی
ایمپلنت کچلر، تجزیه و تحلیل منبع، پردازش چهره بصری، خواندن لب، سازماندهی مجدد مجدد،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب شناختی
چکیده انگلیسی
There is converging evidence that the auditory cortex takes over visual functions during a period of auditory deprivation. A residual pattern of cross-modal take-over may prevent the auditory cortex to adapt to restored sensory input as delivered by a cochlear implant (CI) and limit speech intelligibility with a CI. The aim of the present study was to investigate whether visual face processing in CI users activates auditory cortex and whether this has adaptive or maladaptive consequences. High-density electroencephalogram data were recorded from CI users (n = 21) and age-matched normal hearing controls (n = 21) performing a face versus house discrimination task. Lip reading and face recognition abilities were measured as well as speech intelligibility. Evaluation of event-related potential (ERP) topographies revealed significant group differences over occipito-temporal scalp regions. Distributed source analysis identified significantly higher activation in the right auditory cortex for CI users compared to NH controls, confirming visual take-over. Lip reading skills were significantly enhanced in the CI group and appeared to be particularly better after a longer duration of deafness, while face recognition was not significantly different between groups. However, auditory cortex activation in CI users was positively related to face recognition abilities. Our results confirm a cross-modal reorganization for ecologically valid visual stimuli in CI users. Furthermore, they suggest that residual takeover, which can persist even after adaptation to a CI is not necessarily maladaptive.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: NeuroImage - Volume 121, 1 November 2015, Pages 159-170
Journal: NeuroImage - Volume 121, 1 November 2015, Pages 159-170
نویسندگان
Maren Stropahl, Karsten Plotz, Rüdiger Schönfeld, Thomas Lenarz, Pascale Sandmann, Galit Yovel, Maarten De Vos, Stefan Debener,