Worldwide, 15 million babies are "born too soon" every year (Blencowe et al., 2012; Howson et al., 2013). Remarkably, prematurity survival rates now exceed 93% across all countries. More than 360,000 preterm babies survived in the United States in 2020; 10% of all births (Blencowe et al., 2012; Howson et al., 2013). While this is an…

Linguistic alignment--the contingent reuse of our interlocutors' language at all levels of linguistic structure--pervades human dialogue. Here, we design unique measures to capture the degree of linguistic alignment between interlocutors' linguistic representations at three levels of structure: lexical, syntactic, and semantic. We track these…