Burke B D
New South Wales College of Paramedical Studies, School of Speech Therapy, Camperdown, Australia.
J Commun Disord. 1975 Jun;8(2):141-55. doi: 10.1016/0021-9924(75)90006-4.
Twenty male stutterers (7-18 years) described pictures under delayed auditory feedback (DAF). Delay was varied from 0 to 300 msec in 50 msec steps. There was a significant interaction between delay time, age and initial disfluency in terms of disfluent words but not speech rate. Young stutterers (7-12 years) were generally more affected by DAF than older stutterers (13-18 years). Under DAF high disfluent stutterers showed reduced disfluency, whereas low disfluent stutterers either showed little or no change or became more disfluent. Delays of 50-150 msec tended to have an ameliorative effect on stuttering. Conflicting results were obtained when the same subjects repeated short sentences under DAF. The majority of stutterers were fluent when repeating the sentences under no delay, but stuttering increased under DAF. Current explanations of the DAF effect and feedback theories of stuttering do not readily account for these results.
20名男性口吃者（7至18岁）在延迟听觉反馈（DAF）条件下描述图片。延迟时间从0到300毫秒，以50毫秒为步长变化。就不流畅言语而言，延迟时间、年龄和初始不流畅性之间存在显著交互作用，但在言语速率方面不存在这种交互作用。年轻的口吃者（7至12岁）通常比年长的口吃者（13至18岁）受DAF的影响更大。在DAF条件下，高度不流畅的口吃者不流畅性降低，而低度不流畅的口吃者要么变化很小或没有变化，要么变得更不流畅。50至150毫秒的延迟往往对口吃有改善作用。当相同的受试者在DAF条件下重复短句时，得到了相互矛盾的结果。大多数口吃者在无延迟重复句子时表现流畅，但在DAF条件下口吃增加。目前对DAF效应的解释以及口吃的反馈理论都不能轻易解释这些结果。
