Stuart A, Kalinowski J, Armson J, Stenstrom R, Jones K
Department of Psychology, Dalhousie University, Halifax, Nova Scotia, Canada.
J Speech Hear Res. 1996 Apr;39(2):396-401. doi: 10.1044/jshr.3902.396.
The effect of frequency alterations in auditory feedback of people who stutter on stuttering frequency was investigated. Twelve participants who stutter read aloud under nonaltered auditory feedback (NAF) and four conditions of frequency-altered feedback ([FAF], plus/minus one-half and one-quarter octaves) at normal and fast speech rates. Stuttering frequency was significantly higher while reading aloud with NAF relative to the four conditions of FAF (p < 0.05). There were no differences among participants' stuttering frequency between the four FAF conditions (p > 0.05). Reductions in stuttering frequency of approximately 50% to 60% were found with FAF relative to NAF. More disfluencies occurred with the fast versus the normal speech rate condition (p = .0007) irrespective of auditory feedback condition. These findings suggest that slight alterations in the frequency of auditory feedback of people who stutter are fluency-enhancing.
研究了口吃者听觉反馈频率改变对口吃频率的影响。12名口吃参与者在正常语速和快速语速下，分别在未改变的听觉反馈（NAF）以及四种频率改变的反馈条件（[FAF]，正负二分之一和四分之一倍频程）下大声朗读。与四种FAF条件相比，在NAF下大声朗读时口吃频率显著更高（p < 0.05）。四种FAF条件之间参与者的口吃频率没有差异（p > 0.05）。相对于NAF，FAF使口吃频率降低了约50%至60%。无论听觉反馈条件如何，快速语速条件下比正常语速条件下出现了更多的不流畅现象（p = 0.0007）。这些发现表明，口吃者听觉反馈频率的轻微改变可增强流畅性。
