先天性左上颞叶缺失者尽管缺乏典型视觉词形区,但仍具有完整的阅读能力。

IF 2.6 3区 心理学 Q2 PSYCHOLOGY Cognitive Neuropsychology Pub Date : 2022-07-01 Epub Date: 2023-01-18 DOI:10.1080/02643294.2023.2164923
Jin Li, Hope Kean, Evelina Fedorenko, Zeynep Saygin
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引用次数: 0

摘要

视觉词形区(VWFA)是位于左侧腹侧颞皮层(VTC)的一个典型区域,由于它与前颞语言区的连接,该区域在识字成人中专门用于拼写。但是,典型的左侧化语言网络对 VWFA 的出现是否至关重要?我们在一个天生没有左上颞叶但阅读能力正常的个体(EG)身上研究了这个问题。EG 双侧均表现出典型的面孔选择性,但右侧 VWFA 和左侧 VWFA 均无单词选择性。此外,与 "VWFA 只是语言网络的一部分 "这一观点相反,EG 的 VTC 没有任何部分显示出对高级语言处理的选择性。有趣的是,EG 的 VWFA 显示出可靠的多变量模式,可将单词与其他类别区分开来。这些结果表明,一个典型的左半球语言网络对于 "正音 VWFA "是必要的,否则正字法处理可以由分布式神经代码支持。
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Intact reading ability despite lacking a canonical visual word form area in an individual born without the left superior temporal lobe.

The visual word form area (VWFA), a region canonically located within left ventral temporal cortex (VTC), is specialized for orthography in literate adults presumbly due to its connectivity with frontotemporal language regions. But is a typical, left-lateralized language network critical for the VWFA's emergence? We investigated this question in an individual (EG) born without the left superior temporal lobe but who has normal reading ability. EG showed canonical typical face-selectivity bilateraly but no wordselectivity either in right VWFA or in the spared left VWFA. Moreover, in contrast with the idea that the VWFA is simply part of the language network, no part of EG's VTC showed selectivity to higher-level linguistic processing. Interestingly, EG's VWFA showed reliable multivariate patterns that distinguished words from other categories. These results suggest that a typical left-hemisphere language network is necessary for acanonical VWFA, and that orthographic processing can otherwise be supported by a distributed neural code.

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来源期刊
Cognitive Neuropsychology
Cognitive Neuropsychology 医学-心理学
CiteScore
5.50
自引率
11.80%
发文量
23
审稿时长
>12 weeks
期刊介绍: Cognitive Neuropsychology is of interest to cognitive scientists and neuroscientists, neuropsychologists, neurologists, psycholinguists, speech pathologists, physiotherapists, and psychiatrists.
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