---
title: Improve speech through perceptual learning
nct_id: NCT07403539
phase: NA
status: RECRUITING
sponsor: State University of New York at Buffalo
study_type: INTERVENTIONAL
canonical_url: "https://parkinsonspathways.com/trial/NCT07403539"
clinicaltrials_gov: "https://clinicaltrials.gov/study/NCT07403539"
last_fetched: "2026-05-10T14:03:41.216Z"
source: "Parkinson's Pathways (curated)"
---
# Improve speech through perceptual learning

**Goal (in five words):** Improve speech through perceptual learning

**Official Title:** Relationship Between Speech Perceptual Learning and Speech Production in Parkinson's Disease

**Trial ID:** [NCT07403539](https://clinicaltrials.gov/study/NCT07403539)

## Key Facts

- **Phase:** NA
- **Status:** RECRUITING
- **Study Type:** INTERVENTIONAL
- **Sponsor:** State University of New York at Buffalo
- **Target Enrollment:** 50 participants
- **Start Date:** 2026-01-27
- **Completion Date:** 2027-12-31
- **Conditions:** Parkinson's Disease
- **Interventions:** Intensity learning, Intensity discrimination, Rate learning, Rate discrimination
- **Intervention Types:** BEHAVIORAL

## Summary For Families

The goal is to see whether sharpening how people with Parkinson's hear loudness and speaking rate can help them speak louder, clearer, or at a more natural speed. Participants do listening-based training that teaches intensity discrimination and rate discrimination, essentially practice detecting small changes in loudness and speech rate so they can adjust their own production; these are behavioral exercises rather than drugs, and people stay on their usual levodopa. The study is enrolling U.S. residents age 45 and up with Parkinson's who are native North American English speakers and take a levodopa-containing medication, excluding those with other major neurological problems, prior non-Parkinson's speech or language disorders, or significant hearing loss.

## Eligibility

- **Minimum age:** 45 Years
- **Sex:** ALL

### Full Criteria

```
Inclusion Criteria:

* Diagnosis of Parkinson's disease
* Native speaker of North American English
* Use a drug that includes levodopa
* Resident of the United States

Exclusion Criteria:

* Any history of language, hearing or speech disorder outside of Parkinson's disease
* Other gross neurological impairment such as Alzheimer's disease or stroke
* Significant hearing loss and/or use of a hearing aid or cochlear implant
```

## Locations (1)

- State University of New York at Buffalo, Buffalo, New York, United States _(42.8865, -78.8784)_
  - Jordana Maisel — (CONTACT) — 1 (716) 829-5902 — jlmaisel@buffalo.edu

---

*Canonical: https://parkinsonspathways.com/trial/NCT07403539*  
*HTML version: https://parkinsonspathways.com/trial/NCT07403539*  
*Source data: https://clinicaltrials.gov/study/NCT07403539*