Stuart A, Kalinowski J, Rastatter M P
Department of Communication Sciences and Disorders, East Carolina University, Greenville, North Carolina 27858-4353, USA.
J Acoust Soc Am. 1997 Jun;101(6):3806-9. doi: 10.1121/1.418387.
The effect of monaural and binaural alterations in auditory feedback on stuttering frequency was investigated. Eleven participants who stutter read aloud under nonaltered auditory feedback (NAF) and monaural and binaural conditions of frequency altered feedback [(FAF), on-quarter octave shift upward] and delayed auditory feedback [(DAF), 50-ms delay] at a normal speech rate. Relative to the NAF condition, reductions in stuttering frequency of approximately 60%-75% were found with the altered auditory feedback conditions. Post hoc single-df comparisons revealed a reduction in stuttering frequency with altered auditory feedback versus NAF (p < 0.0001), a greater reduction in stuttering frequency for binaural compared to monaural altered auditory feedback (p = 0.028), and nonsignificant differences in stuttering frequencies for right versus left monaural conditions (p = 0.54) and DAF versus FAF (p = 0.70).
研究了听觉反馈中单侧和双侧改变对口吃频率的影响。11名口吃参与者在正常语速下，于未改变的听觉反馈（NAF）、频率改变反馈（FAF，向上四分之一倍频程偏移）的单侧和双侧条件以及延迟听觉反馈（DAF，50毫秒延迟）下大声朗读。相对于NAF条件，在改变的听觉反馈条件下，口吃频率降低了约60%-75%。事后单自由度比较显示，与NAF相比，改变的听觉反馈使口吃频率降低（p < 0.0001），双侧改变的听觉反馈比单侧改变的听觉反馈使口吃频率降低幅度更大（p = 0.028），右侧与左侧单侧条件下口吃频率无显著差异（p = 0.54），DAF与FAF之间口吃频率也无显著差异（p = 0.70）。
