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Neural correlates of phonology-to-orthography mapping consistency effects on Chinese spoken word recognition
Brain and Language ( IF 2.5 ) Pub Date : 2021-05-06 , DOI: 10.1016/j.bandl.2021.104961
Pei-Chun Chao , Wei-Fan Chen , Jason Zevin , Chia-Ying Lee

Previous studies have shown that reading experience reshapes speech processing. The orthography can be implemented in the brain by restructuring the phonological representations or being co-activated during spoken word recognition. This study utilized event-related functional magnetic resonance imaging and functional connectivity analysis to examine the neural mechanism underlying two types of orthographic effects in the Chinese auditory semantic category task, namely phonology-to-orthography consistency (POC) and homophone density (HD). We found that the POC effects originated from the speech network, suggesting that sublexical orthographic information could change the organization of preexisting phonological representations when learning to read. Meanwhile, the HD effects were localized to the left fusiform and lingual gyrus, suggesting that lexical orthographic knowledge may be activated online during spoken word recognition. These results demonstrated the different natures and neural mechanisms for the POC and HD effects on Chinese spoken word recognition.

更新日期:2021-05-07
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