聋人和听力正常读者的蒙面 ERP 重复启动。
Masked ERP repetition priming in deaf and hearing readers.
机构信息
School of Speech, Language and Hearing Sciences, San Diego State University, CA, USA.
Department of Psychology, San Diego State University, CA, USA.
出版信息
Brain Lang. 2021 Mar;214:104903. doi: 10.1016/j.bandl.2020.104903. Epub 2021 Jan 21.
Deaf readers provide unique insights into how the reading circuit is modified by altered linguistic and sensory input. We investigated whether reading-matched deaf and hearing readers (n = 62) exhibit different ERP effects associated with orthographic to phonological mapping (N250) or lexico-semantic processes (N400). In a visual masked priming paradigm, participants performed a go/no-go categorization task; target words were preceded by repeated or unrelated primes. Prime duration and word frequency were manipulated. Hearing readers exhibited typical N250 and N400 priming effects with 50 ms primes (greater negativity for unrelated primes) and smaller effects with 100 ms primes. Deaf readers showed a surprising reversed priming effect with 50 ms primes (greater negativity for related primes), and more typical N250 and N400 effects with 100 ms primes. Correlation results suggested deaf readers with poorer phonological skills drove this effect. We suggest that weak phonological activation may create orthographic "repetition enhancement" or form/lexical competition in deaf readers.
聋读者为我们提供了独特的视角，让我们了解语言和感官输入的改变是如何影响阅读回路的。我们研究了阅读匹配的聋人和听力读者（n=62）是否表现出不同的与正字法到语音映射（N250）或词汇语义过程（N400）相关的 ERP 效应。在视觉掩蔽启动范式中，参与者执行了一个 Go/No-Go 分类任务；目标词之前有重复或不相关的启动词。启动词持续时间和词频被操纵。听力读者表现出典型的 N250 和 N400 启动效应，50 毫秒的启动词（不相关的启动词产生更大的负性），100 毫秒的启动词效应较小。聋读者则表现出令人惊讶的反转启动效应，50 毫秒的启动词（相关的启动词产生更大的负性），而 100 毫秒的启动词则表现出更典型的 N250 和 N400 效应。相关结果表明，语音技能较差的聋读者导致了这种效应。我们认为，弱语音激活可能会在聋读者中产生正字法“重复增强”或形式/词汇竞争。
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