Understanding Communication and Cognitive Impairments in Neurodegenerative Disorders
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 100
- 试验地点
- 2
- 主要终点
- Duration
研究概览
简要总结
The goal is to improve the fundamental knowledge about articulatory motor performance in people with Lou Gehrig's disease (also known as ALS) and Parkinson's disease (PD), in order to develop more sensitive assessments for progressive speech loss, which may lead to the improved timing of speech therapies.
详细描述
The long-term goal is to optimize dysarthria assessment by improving the early detection and tracking of articulatory performance in progressive dysarthrias. The short-term goal of the proposed cross-sectional study is to focus on ALS and PD and quantify articulatory kinematic performance as a function of phonetic complexity, which is experimentally manipulated based on theoretical principles of speech motor development. The research strategy is to use 3D electromagnetic articulography to examine phonetic complexity effects of single word stimuli at the articulatory kinematic level in 15 talkers each with preclinical, mild, and moderate dysarthria, relative to 45 controls. The central hypothesis is that as dysarthria severity increases the discrepancy in articulatory performance, indexed by movement speed, distance, coordination, and variability, between people with dysarthria and typical controls will significantly increase at a lower phonetic complexity level.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 年龄范围
- 19 Years 至 90 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •May or may not have a neurological impairment.
- •Age range of 19-90 years.
- •Male or female.
- •Provide written consent before any study specific procedures are performed.
- •Have ability to comply with basic instructions.
- •Monolingual English speaker.
- •Have ability to partake in a 90 minute data collection.
排除标准
- •Any speech, language, cognition, or hearing impairment prior to diagnosis of a neurodegenerative disease.
- •Anyone not appropriate for study participation, as deemed by the principal investigator.
研究组 & 干预措施
Phonetic complexity effects
Conduct a comprehensive kinematic assessment using state-of-the art 3D speech tracking technology on individuals with ALS and PD as well as healthy talkers to identify articulatory motor disturbances as a function of phonetic complexity and dysarthria severity. Phonetic complexity will be experimentally manipulated using the consonant and vowel complexity classification system proposed by Kent (1992) that takes into account the underlying articulatory motor adjustments required to produce various speech sounds.
干预措施: Phonetic complexity effects on speech motor performance (Behavioral)
结局指标
主要结局
Duration
时间窗: Up to 3 months after enrollment
Word duration (seconds) is the time between onset and offset of movement for each word.
Inter-articulator coordination
时间窗: Up to 3 months after enrollment
Spatiotemporal coupling relations between articulators will be derived from vertical movements of the articulators using a covariance measure.
Peak movement speed
时间窗: Up to 3 months after enrollment
Peak speed (millimeters/second) for each articulatory marker is the maximum value of the first-order derivative of each marker's Euclidean distance time-history.
Spatiotemporal movement variability (STI)
时间窗: Up to 3 months after enrollment
STI is the most widely used metric to capture movement pattern variability during speech. To determine STI, the pattern of articulatory movements and the variability of that pattern over several repetitions of an utterance are examined.
Range of movement
时间窗: Up to 3 months after enrollment
The convex hull represents the smallest convex set containing all the points in the 3D motion path.
次要结局
未报告次要终点
研究者
Mili Kuruvilla
Assistant Professor
University of Missouri-Columbia