Sparks Garen, Grant Dorothy E, Millay Kathleen, Walker-Batson Delaina, Hynan Linda S
Department of Communication Sciences and Disorders, Texas Woman's University, Dallas, TX, USA.
J Fluency Disord. 2002 Fall;27(3):187-200; quiz 200-1, III. doi: 10.1016/s0094-730x(02)00128-6.
Delayed auditory feedback (DAF) has been documented to improve fluency in those who stutter. The increased fluency has been attributed to the slowed speech rate induced by DAF, but recent experiments have suggested that increasing the speech rate may also decrease stuttering under DAF. This investigation described the effect of combining a fast speech rate and DAF on the fluency of four people who stutter. Fluency of the two mildly dysfluent subjects was the same for both no DAF and DAF conditions at normal and at fast oral reading rates. In contrast, the two severely dysfluent subjects improved in fluency from the no DAF to the DAF conditions. They were found to be dysfluent at both normal and fast oral reading rates without DAF. The results of the study point to the need for further research on the relationship between speech rate and stuttering frequency under conditions of DAF and no DAF.
Readers will learn about and be able to describe how the frequency of stuttering is affected by: (1) speech rates; (2) DAF; and (3) how stuttering severity influences such effects.
延迟听觉反馈（DAF）已被证明可提高口吃者的流畅性。流畅性的提高归因于DAF引起的语速减慢，但最近的实验表明，提高语速也可能减少DAF下的口吃。本研究描述了快速语速与DAF相结合对口吃的四个人流畅性的影响。对于两个轻度口吃的受试者，在正常和快速朗读语速下，无DAF和DAF条件下的流畅性相同。相比之下，两个严重口吃的受试者从无DAF条件到DAF条件时流畅性得到改善。发现他们在无DAF时正常和快速朗读语速下均存在口吃。该研究结果表明需要进一步研究DAF和无DAF条件下语速与口吃频率之间的关系。
读者将了解并能够描述口吃频率如何受到以下因素影响：（1）语速；（2）DAF；以及（3）口吃严重程度如何影响这些效果。
