Anti-phasic oscillatory development for speech and noise processing in cochlear implanted toddlers

作者：Meiyun Wu, Yuyang Wang, Xue Zhao, Tianyu Xin, Kun Wu, Haotian Liu, Shinan Wu, Min Liu, Xiaoke Chai, Jinhong Li, Chaogang Wei, Chaozhe Zhu, Yuhe Liu, Yu‐Xuan Zhang · 发表于：Child Development · 年份：2024 · DOI：10.1111/cdev.14105 · 被引用次数：6 · 研究领域：Neural dynamics and brain function、Hearing Loss and Rehabilitation、Neuroscience and Music Perception

Human brain demonstrates amazing readiness for speech and language learning at birth, but the auditory development preceding such readiness remains unknown. Cochlear implanted (CI) children (n = 67; mean age 2.77 year ± 1.31 SD; 28 females) with prelingual deafness provide a unique opportunity to study this stage. Using functional near-infrared spectroscopy, it was revealed that the brain of CI children was irresponsive to sounds at CI hearing onset. With increasing CI experiences up to 32 months, the brain demonstrated function, region and hemisphere specific development. Most strikingly, the left anterior temporal lobe showed an oscillatory trajectory, changing in opposite phases for speech and noise. The study provides the first longitudinal brain imaging evidence for early auditory development preceding speech acquisition.