INDEPENDENT ASPECTS OF SPEECH TIMING IN NEUROLOGICAL DISORDERS

帕金森病患者的听觉和听觉研究 CV音节中的位置对比的产生是从孤立的 从/ba/、/da/和/ga/的生产到/pa/、/ta/的连续生产 和/ka/来确定是否在连续 演讲 受试者在被迫选择时的可懂度分数 识别任务表现出正常的可理解性。 声学措施 的第一和第二共振峰，变化率和声音开始时间也 导致与正常情况的差异很小。 这表明，这些 患者在塞音发音部位对比方面的偏误较少 控制性语言测试 这些实验室结果不是 与临床印象中的语言清晰度差相当， 患者在谈话中 已经开始了两种新的研究 今年 在一个，感知和声学措施将停止 和摩擦音的CV和VC音节嵌入在扩展的语音短语。 另一方面，研究词频、词长和言语的影响 计划测量言语起始时间、运动速度和 在正常成人中研究咬合架间协调， 帕金森病患者。 患者唇颌运动速度和位移的初步研究 迟发性运动障碍患者在自愿言语任务中检查运动。 达到相同的最大位移点，但速度较低 表明自主运动受到这种紊乱的影响。

Perceptual and acoustic studies of Parkinson's disease patients' productions of place contrasts in CV syllables were extended from isolated productions of /ba/, /da/ and /ga/ to continuous productions of /pa/, /ta/ and /ka/ to determine whether greater difficulties occur in continuous speech. Intelligibility scores of listeners on a forced choice identification task demonstrated normal intelligibility. Acoustic measures of first and second formants, rate of change and voice onset time also resulted in very few differences from normal. This indicated that these patients have few errors in stop consonants place of articulation contrasts in controlled speech testing. These laboratory results are not commensurate with clinical impressions of poor speech intelligibility of patients during conversation. Two new types of studies have been initiated this year. In one, perceptual and acoustic measures will be made of stops and fricatives in CV and VC syllables embedded in extended speech phrases. In the other, the effects of word frequency, word length and speech planning on measures of speech initiation time, movement velocity and inter-articulator coordination are being studied in normal adults and Parkinson's disease patients. A pilot study of lip and jaw movement velocity and displacement in patients with tardive dyskinesia examined movement during voluntary speech tasks. The same maximum displacement points were reached but at lower velocities suggesting that voluntary movement is affected by this disorder.