The current study evaluated the separate and combined effects of bilingualism and Autism Spectrum Disorder (ASD) on informativeness and definiteness marking of referential expressions. Hebrew-speaking monolingual children (21 with ASD and 28 with typical language development) and Russian–Hebrew-speaking bilingual children (13 with ASD and 30 with typical language development) aged 4–9 years participated. Informativeness, indexed by referential contrasts, was affected by ASD, but not by bilingualism. Definiteness use was non-target-like in children with ASD and in bilingual children, and it was mainly predicted by children’s morpho-syntactic abilities in Hebrew. Language-universal and language-specific properties of referential use are discussed.

目前的研究评估了双语和自闭症谱系障碍 (ASD) 对指称表达的信息性和明确性标记的单独和联合影响。4-9 岁的说希伯来语的单语儿童（21 名患有 ASD，28 名具有典型的语言发展）和说俄语-希伯来语的双语儿童（13 名患有 ASD，30 名具有典型的语言发展）。以参考对比为索引的信息量受 ASD 的影响，但不受双语制的影响。自闭症儿童和双语儿童的确定性使用是非目标类的，主要由儿童在希伯来语中的形态句法能力预测。讨论了指称使用的语言通用和语言特定属性。