Autism, constructionism, and nativism

The goal of this article is to provide a balanced assessment of the significance autism has for the scientific study of language. While linguistic profiles in autism vary greatly, spanning from a total absence of functional language to verbal levels within the typical range, the entire autism spectrum is robustly characterized by lifelong disabilities in intersubjective communication and persistent difficulties in adopting the perspective of other people. In that sense, autism constitutes a unique profile in which linguistic competence is dissociated from communication skills. Somewhat paradoxically, autism is often mentioned to underscore the importance of mind reading for language use and of intersubjective communication for the emergence of language. Yet experimental studies on pragmatics in autism indicate that many pragmatic processes unfold without adopting one's conversational partner's perspective. Moreover, the patterns of language acquisition and learning in autism represent a strong challenge to the central role constructionist theories assign to socio-communicative skills. Data on autism thus force a reconsideration of the a priori conceptual boundaries on language learnability that shape the foundational debates between constructionist and nativist linguistic theories.