In this study, the authors examined the extent to which the choral speech effect depended on presentation of intact temporal speech cues. They also examined whether speakers who stutter followed choral signals more closely than typical speakers did. In this study, the authors found adults who stutter spoke more fluently in all choral speaking conditions than they did when speaking solo. They also spoke slower and exhibited closer temporal entrainment with the choral signal during the mid- to late-stages of sentence production than the adults who did not stutter. Both groups entrained more closely with unaltered choral signals than they did with altered choral signals. Findings suggest that adults who stutter make greater use of speech-related information in choral signals when talking than adults with typical fluency do. The presence of fluency facilitation during temporally altered choral speech and conversation babble suggests that temporal/gestural cueing alone cannot account for fluency facilitation in speakers who stutter.
Park, Jin & Logan, Kenneth J. (2015). The role of temporal speech cues in facilitating the fluency of adults who stutter. Journal of Fluency Disorders. doi:10.1016/j.jfludis.2015.07.001