The role of the posterior fusiform gyrus in reading.
The role of the posterior fusiform gyrus in reading.
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DOI：
10.1162/jocn.2006.18.6.911
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发表时间：
2006-06
影响因子：
3.2
通讯作者：
Matthews, Paul M.
中科院分区：
文献类型：
--
作者：
Devlin, Joseph T.;Jamison, Helen L.;Gonnerman, Laura M.;Matthews, Paul M.
对熟练阅读的研究，儿童的习得，以及纯失读症患者的损伤，都强调了左后梭状皮质在视觉单词识别中的重要性。我们使用视觉掩蔽启动和fMRI来阐明该区域对阅读的特定功能贡献，并发现：i）与单词不同，伪词的重复（“solst-solst”）在该区域没有产生神经启动效应，ii）拼写相关的词如“corner-corn”确实产生了神经启动效应，但是iii）当启动-目标对在语义上相关（“教师-教学”）时，这种正字法启动效应降低。这些发现与存储视觉单词形式的概念相冲突，而是表明该区域作为视觉形式信息和高阶刺激属性（如其相关的声音和意义）之间的接口。重要的是，这个功能并不是特定于阅读，而是在处理任何有意义的视觉刺激时也参与其中。
Studies of skilled reading, its acquisition in children, and its impairment in patients with pure alexia, all highlight the importance of the left posterior fusiform cortex in visual word recognition. We used visual masked priming and fMRI to elucidate the specific functional contribution of this region to reading and found that: i) unlike words, repetition of pseudowords (“solst-solst”) did not produce a neural priming effect in this region, ii) orthographically related words such as “corner-corn” did produce a neural priming effect, but iii) this orthographic priming effect was reduced when prime-target pairs were semantically related (“teacher-teach”). These findings conflict with the notion of stored visual word forms and instead suggest that this region acts as an interface between visual form information and higher-order stimulus properties such as its associated sound and meaning. Importantly, this function is not specific to reading, but is also engaged when processing any meaningful visual stimulus.
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