NIH-funded research R01 grant

Subcortical Circuits and Speech Sequencing in Deep Brain Stimulator Recipients

Official title: Investigating Subcortical Contributions to Speech Sequencing in Deep Brain Stimulator Recipients

Funded at Boston University (Charles River Campus) · NIH-11398995 · Data updated 2026-11-12

This project looks at how deep brain stimulation in people with certain brain disorders affects how they learn and produce sequences of speech.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionBoston University (Charles River Campus)
NIH-funded
Lab location1 site (Boston, United States)
Project startSeptember 1, 2025
Project endAugust 30, 2030
Funding year2026
Award (this year)$691,361
NIH project number5R01DC022949-02
Project IDNIH-11398995 on NIH RePORTER

Who could benefit from this research

Could help

Adults with existing DBS implants targeting the basal ganglia (subthalamic nucleus) or cerebellar pathways (ventral intermediate nucleus) who can safely participate in experimental DBS state changes.

Less likely to help

People without DBS implants or with medical contraindications to DBS state manipulation may not benefit from this study.

What this research studies

Researchers will use modern DBS devices to turn stimulation on and off in people with implanted targets in the basal ganglia or cerebellum to study how these brain regions contribute to learning and producing speech sequences. The study will compare two groups: participants with STN-DBS and participants with VIM-DBS, examining how stimulation during training and testing influences their speech performance. The work tests ideas from a computational model of speech sequencing and uses precise behavioral tasks with phoneme sequences within a syllable and multisyllabic pseudowords. Each arm plans to enroll about 20 participants per DBS target, aiming to clarify the distinct roles of the BG and CB circuits in speech. The project seeks to advance our understanding of neural control of fluent speech in people who already have implanted DBS systems.

Why it matters

Potential benefit: If successful, findings could improve strategies for speech therapy and DBS programming to support clearer, more fluent speech in affected individuals.

How similar studies have gone: Prior research has explored DBS effects on movement but this study uniquely focuses on speech sequencing in humans with targeted DBS.

Where this research is happening

  • Boston University (Charles River Campus)
    Boston, United States
    Active

Researchers

  • Principal investigator: Guenther, Frank H — Boston University (Charles River Campus)
  • Study coordinator: Guenther, Frank H

Related research

Other NIH-funded projects on the same topics.

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.