This study examines cross-modality effects of a semantically-biased written sentence context on the perception of an acoustically-ambiguous word target identifying neural areas sensitive to interactions between sentential bias and phonetic ambiguity. Of interest is whether the locus or nature of the interactions resembles those previously demonstrated for auditory-only effects. FMRI results show significant interaction effects in right mid-middle temporal gyrus (RmMTG) and bilateral anterior superior temporal gyri (aSTG), regions along the ventral language comprehension stream that map sound onto meaning. These regions are more anterior than those previously identified for auditory-only effects; however, the same cross-over interaction pattern emerged implying similar underlying computations at play. The findings suggest that the mechanisms that integrate information across modality and across sentence and phonetic levels of processing recruit amodal areas where reading and spoken lexical and semantic access converge. Taken together, results support interactive accounts of speech and language processing.

中文翻译：

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书面句子上下文对声学-语音感知的影响：fMRI 揭示跨模态语义-感知交互

本研究检查了语义有偏见的书面句子上下文对识别对句子偏见和语音歧义之间的相互作用敏感的神经区域的声学歧义词目标的感知的跨模态影响。有趣的是相互作用的轨迹或性质是否类似于先前证明的仅听觉效应。FMRI 结果显示右侧颞中中回 (RmMTG) 和双侧颞上前回 (aSTG) 的显着交互作用，沿着腹侧语言理解流将声音映射到意义的区域。这些区域比之前确定的仅用于听觉效果的区域更靠前；然而，出现了相同的交叉交互模式，这意味着类似的底层计算在起作用。研究结果表明，跨模态和跨句子和语音处理级别整合信息的机制招募了阅读和口语词汇和语义访问融合的非模态区域。总之，结果支持语音和语言处理的交互式帐户。