This study assessed indices of autonomic arousal and vocal tension during challenge in preschool-age children who do stutter (CWS) and do not stutter (CWNS). Results suggested that preschool-age CWS-severe exhibit vocal tension while speaking in conditions of social (e.g. speaking to unfamiliar examiner) and communicative (e.g. recalling from memory names of pictures previously shown) challenge, and such vocal behavior is possibly associated with this subgroup’s difficulty establishing normally fluent speech.
Danra Kazenski, Barry Guitar, Rebecca McCauley, William Falls, Lindsay Stallings Dutko. (2014). “Stuttering severity and responses to social-communicative challenge in preschool-age children who stutter. Speech, Language and Hearing. DOI: 10.1179/2050572813Y.0000000032