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Brain activations associated with sign production using word and picture inputs in deaf signers |
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| Authors: | Hu Zhiguo Wang Wenjing Liu Hongyan Peng Danling Yang Yanhui Li Kuncheng Zhang John X Ding Guosheng |
| Institution: | a Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China b State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China c Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, China d Department of Psychology, Chinese University of Hong Kong, Hong Kong, China |
| Abstract: | Effective literacy education in deaf students calls for psycholinguistic research revealing the cognitive and neural mechanisms underlying their written language processing. When learning a written language, deaf students are often instructed to sign out printed text. The present fMRI study was intended to reveal the neural substrates associated with word signing by comparing it with picture signing. Native deaf signers were asked to overtly sign in Chinese Sign Language (CSL) common objects indicated with written words or presented as pictures. Except in left inferior frontal gyrus and inferior parietal lobule where word signing elicited greater activation than picture signing, the two tasks engaged a highly overlapping set of brain regions previously implicated in sign production. The results suggest that word signing in the deaf signers relies on meaning activation from printed visual forms, followed by similar production processes from meaning to signs as in picture signing. The present study also documents the basic brain activation pattern for sign production in CSL and supports the notion of a universal core neural network for sign production across different sign languages. |
| Keywords: | Chinese Sign Language Production Picture naming Translation fMRI |
| 本文献已被 ScienceDirect PubMed 等数据库收录！ | |