# A Systematic Investigation of Phonetic Complexity Effects on Articulatory Motor Performance in Progressive Dysarthria

> **NCT03613038** · NA · COMPLETED · sponsor: **University of Missouri-Columbia** · enrollment: 100 (actual)

## Conditions studied

- Amyotrophic Lateral Sclerosis
- Parkinson Disease

## Interventions

- **BEHAVIORAL:** Phonetic complexity effects on speech motor performance

## Key facts

- **NCT ID:** NCT03613038
- **Lead sponsor:** University of Missouri-Columbia
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2017-07-15
- **Primary completion:** 2022-02-28
- **Final completion:** 2022-02-28
- **Target enrollment:** 100 (ACTUAL)
- **Last updated:** 2022-05-17

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03613038

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03613038, "A Systematic Investigation of Phonetic Complexity Effects on Articulatory Motor Performance in Progressive Dysarthria". Retrieved via AI Analytics 2026-06-12 from https://api.ai-analytics.org/clinical/NCT03613038. Licensed CC0.

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