Howell Peter
Department of Psychology, University College London, London, UK.
Folia Phoniatr Logop. 2007;59(5):250-5. doi: 10.1159/000104463.
It is known that the speech of people who stutter improves when the speaker's own vocalization is changed while the participant is speaking. One explanation of these effects is the disruptive rhythm hypothesis (DRH). The DRH maintains that the manipulated sound only needs to disturb timing to affect speech control. The experiment investigated whether speech that was gated on and off (interrupted) affected the speech control of speakers who stutter. Eight children who stutter read a passage when they heard their voice normally and when the speech was gated. Fluency was enhanced (fewer errors were made and time to read a set passage was reduced) when speech was interrupted in this way. The results support the DRH.
众所周知，口吃者在说话时若自身发声发生改变，其言语会得到改善。对这些效应的一种解释是干扰节奏假说（DRH）。DRH认为，被操控的声音只需干扰节奏就能影响言语控制。该实验研究了开关式（中断式）言语是否会影响口吃者的言语控制。八名口吃儿童在正常听到自己声音时以及言语被中断时朗读一篇文章。当言语以这种方式被中断时，流畅性得到了提高（错误减少，朗读一篇固定文章的时间缩短）。结果支持了DRH。
