Previous studies on adults with dyslexia (DYS) have indicated difficulties in the comprehension of figurative language. Using the divided visual field paradigm, the present study investigated the hemispheric processing of idioms among 22 adults with DYS and 21 regular reader (RR) adults. Participants performed a lexical decision task for a target word related to either a literal or a figurative interpretation of an idiom. The results show that whereas the RR group demonstrated a bilateral pattern of hemispheric processing of idiomatic meanings, the DYS group showed a right hemisphere (RH) advantage. Furthermore, both groups demonstrated the typical RH advantage in processing the literal meanings of idioms. Our findings indicate increased recruitment of the RH in dyslexia, probably due to differences in cerebral language areas or weaker LH semantic processing.

以前对成人阅读障碍（DYS）的研究表明，在理解比喻语言方面存在困难。本研究使用划分视野范式，调查了22名DYS成人和21名常规阅读器（RR）成人中成语的半球处理。参与者对与惯用语的字面意义或比喻解释相关的目标单词执行了词汇决策任务。结果显示，尽管RR组显示了惯用意义的半球处理的双边模式，但DYS组显示了右半球（RH）的优势。此外，两个小组都证明了在处理成语的字面意义上的典型RH优势。我们的研究结果表明，阅读障碍患者中RH的募集增加，