To investigate cross-linguistic interactions in bimodal bilingual production, behavioural and electrophysiological measures (ERPs) were recorded from 24 deaf bimodal bilinguals while naming pictures in Catalan Sign Language (LSC). Two tasks were employed, a picture-word interference and a picture-picture interference task. Cross-linguistic effects were explored via distractors that were either semantically related to the target picture, to the phonology/orthography of the Spanish name of the target picture, or were unrelated. No semantic effects were observed in sign latencies, but ERPs differed between semantically related and unrelated distractors. For the form-related manipulation, a facilitation effect was observed both behaviourally and at the ERP level. Importantly, these effects were not influenced by the type of distractor (word/picture) presented providing the first piece of evidence that deaf bimodal bilinguals are sensitive to oral language in sign production. Implications for models of cross-linguistic interactions in bimodal bilinguals are discussed.

中文翻译：

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跨模式的跨语言交互：口语对手语产生的影响

为了研究双峰双语生产中的跨语言交互，记录了 24 名聋哑双语双语者的行为和电生理测量 (ERP)，同时用加泰罗尼亚手语 (LSC) 命名图片。采用了两个任务，一个图片-单词干扰和一个图片-图片干扰任务。通过在语义上与目标图片相关、与目标图片的西班牙名称的音系/正字法相关或不相关的干扰物探索跨语言效应。在符号延迟中没有观察到语义效应，但 ERP 在语义相关和不相关的干扰物之间存在差异。对于形式相关的操作，在行为和 ERP 水平上都观察到了促进效应。重要的，这些影响不受所呈现的干扰物类型（单词/图片）的影响，这提供了第一个证据表明聋人双峰双语者在手语产生中对口语很敏感。讨论了双峰双语者跨语言交互模型的含义。