Deaf signers exhibit an enhanced ability to process information in their peripheral visual field, particularly the motion of dots or orientation of lines. Does their experience processing sign language, which involves identifying meaningful visual forms across the visual field, contribute to this enhancement? We tested whether deaf signers recruit language knowledge to facilitate peripheral identification through a sign superiority effect (i.e., better handshape discrimination in a sign than a pseudosign) and whether such a superiority effect might be responsible for perceptual enhancements relative to hearing individuals (i.e., a decrease in the effect of eccentricity on perceptual identification). Deaf signers and hearing signers or nonsigners identified the handshape presented within a static ASL fingerspelling letter (Experiment 1), fingerspelled sequence (Experiment 2), or sign or pseudosign (Experiment 3) presented in the near or far periphery. Accuracy on all tasks was higher for deaf signers than hearing nonsigning participants and was higher in the near than the far periphery. Across experiments, there were different patterns of interactions between hearing status and eccentricity depending on the type of stimulus; deaf signers showed an effect of eccentricity for static fingerspelled letters, fingerspelled sequences, and pseudosigns but not for ASL signs. In contrast, hearing nonsigners showed an effect of eccentricity for all stimuli. Thus, deaf signers recruit lexical knowledge to facilitate peripheral perceptual identification, and this perceptual enhancement may derive from their extensive experience processing visual linguistic information in the periphery during sign comprehension. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

中文翻译：

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手语优势效应：词汇状态有利于聋人手语者的周边手形识别。

聋哑手语者在处理周边视野中的信息方面表现出增强的能力，尤其是点的运动或线条的方向。他们处理手语的经验，包括在整个视野中识别有意义的视觉形式，是否有助于这种增强？我们测试了聋哑手语者是否通过手语优势效应（即手形识别比伪手语更好）来招募语言知识以促进外围识别，以及这种优势效应是否可能导致相对于听力个体的感知增强（即偏心对知觉识别的影响降低）。聋哑手语者和听力手语者或非手语者识别出静态 ASL 手指拼写字母中呈现的手形（实验 1），手指拼写序列（实验 2），或出现在近或远周边的符号或伪符号（实验 3）。聋哑手语者在所有任务上的准确性高于听力非手语者，并且在近处比远外围更高。在整个实验中，根据刺激类型的不同，听力状态和离心率之间存在不同的相互作用模式；聋人手语者对静态手指拼写字母、手指拼写序列和伪手语表现出偏心效应，但对 ASL 手语没有影响。相比之下，听力非手语者对所有刺激都表现出偏心效应。因此，聋哑手语者会利用词汇知识来促进外围知觉识别，这种感知增强可能源于他们在符号理解过程中处理外围视觉语言信息的丰富经验。（PsycInfo 数据库记录 (c) 2020 APA，保留所有权利）。