Fu Yang, Yan Xiaohui, Mao Jiaqi, Su Haibin, Cao Fan
Department of Psychology, The University of Hong Kong, Hong Kong, China.
State Key Lab of Brain and Cognitive Sciences, The University of Hong Kong, Hong Kong, China.
NPJ Sci Learn. 2024 Aug 24;9(1):53. doi: 10.1038/s41539-024-00266-2.
Reading difficulty (RD) is associated with phonological deficits; however, it remains unknown whether the phonological deficits are different in children and adults with RD as reflected in foreign speech perception and production. In the current study, using functional Near-infrared spectroscopy (fNIRS), we found less difference between Chinese adults and Chinese children in the RD groups than the control groups in the activation of the right inferior frontal gyrus (IFG) and the dorsolateral prefrontal cortex (DLPFC) during Spanish speech perception, suggesting slowed development in these regions associated with RD. Furthermore, using multivariate pattern analysis (MVPA), we found that activation patterns in the left middle temporal gyrus (MTG), premotor, supplementary motor area (SMA), and IFG could serve as reliable markers of RD. We provide both behavioral and neurological evidence for impaired speech perception and production in RD readers which can serve as markers of RD.
阅读障碍（RD）与语音缺陷有关；然而，目前尚不清楚，在外国语音感知和产出方面，患有阅读障碍的儿童和成人的语音缺陷是否存在差异。在本研究中，我们使用功能性近红外光谱技术（fNIRS）发现，在西班牙语语音感知过程中，与对照组相比，阅读障碍组中中国成年人和中国儿童在右侧额下回（IFG）和背外侧前额叶皮层（DLPFC）的激活方面差异较小，这表明这些与阅读障碍相关的脑区发育迟缓。此外，通过多变量模式分析（MVPA），我们发现左侧颞中回（MTG）、运动前区、辅助运动区（SMA）和额下回的激活模式可作为阅读障碍的可靠标志。我们为阅读障碍者的语音感知和产出受损提供了行为和神经学证据，这些证据可作为阅读障碍的标志。
