Reading without phonology: ERP evidence from skilled deaf readers of Spanish.
Reading without phonology: ERP evidence from skilled deaf readers of Spanish.
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DOI：
10.1038/s41598-021-84490-5
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发表时间：
2021-03-04
影响因子：
4.6
通讯作者：
Carreiras M
中科院分区：
文献类型：
--
作者：
Costello B;Caffarra S;Fariña N;Duñabeitia JA;Carreiras M
阅读通常涉及语音调解，特别是透明的正字法与规则的字母到声音的对应。在这项研究中，我们通过研究熟练阅读西班牙语的语前失聪个体，来探讨语音编码是否是阅读过程的必要部分。我们进行了两个利用假同音字效应的脑电图实验，其中听起来像单词的非单词在阅读过程中引起语音编码。首先，一个带有隐藏启动的语义分类任务，导致听力阅读者的N250被假同音词启动调制，而聋人阅读者的N250没有被调制。第二个是词汇决策任务，证实了这一模式：与对照假词相比，听力正常的读者对假同音异义词的错误增加，N400反应减弱，而聋人读者对假同音异义词和假词的对待，无论是在行为上还是在ERP反应上都没有任何不同。这些结果提供了一致的证据，表明熟练的聋人读者在视觉单词识别过程中不依赖语音编码。此外，这一发现表明，阅读可以在没有语音激活的情况下进行，我们推测了使这些失聪个体能够胜任阅读的其他机制。
Reading typically involves phonological mediation, especially for transparent orthographies with a regular letter to sound correspondence. In this study we ask whether phonological coding is a necessary part of the reading process by examining prelingually deaf individuals who are skilled readers of Spanish. We conducted two EEG experiments exploiting the pseudohomophone effect, in which nonwords that sound like words elicit phonological encoding during reading. The first, a semantic categorization task with masked priming, resulted in modulation of the N250 by pseudohomophone primes in hearing but not in deaf readers. The second, a lexical decision task, confirmed the pattern: hearing readers had increased errors and an attenuated N400 response for pseudohomophones compared to control pseudowords, whereas deaf readers did not treat pseudohomophones any differently from pseudowords, either behaviourally or in the ERP response. These results offer converging evidence that skilled deaf readers do not rely on phonological coding during visual word recognition. Furthermore, the finding demonstrates that reading can take place in the absence of phonological activation, and we speculate about the alternative mechanisms that allow these deaf individuals to read competently.
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