“…Here, in native signing children and all adults, the RTPJ showed selective responses to stories that described mental states (Mental condition; "The pirate thought that a pile of gold was buried behind Jimmy's house"), with low responses to Social stories that described people's physical appearance or enduring relationships, but not their mental states (Social condition; "Sarah and Lori play together on the soccer team"). In contrast to our results, though, prior studies find that delayed access to language has broad cognitive effects 77,78 , including delayed development of language comprehension and production 79-81 , 82 , literacy 83,84 , and executive functions 85 , differences in language-related brain development [86][87][88] , and consequences for mental health 89,90 . This discrepancy is likely related to characteristics of our sample.…”