Ongoing Studies

The Vocal Tract Development Laboratory studies the development of the mouth and throat structures in typically and atypically developing individuals. The purpose is to understand how changes in the anatomy of the mouth and throat affect the production and perception of speech sounds. We use a variety of methods to approach this goal including:

  • Taking measurements from medical imaging studies such as CT or MRI scans.
  • Asking volunteer participants to breathe into a tube (Pharyngometer) to measure the inside of the mouth and throat using the reflection of sound waves.
  • Recording participants' speech and analyzing the speech waveforms.
  • Asking participants to listen to recorded speech and type what they hear.

How you can get involved

You can help by choosing to participate in one of our ongoing studies! If you are interested in participating, or are a parent, guardian, or family member of an individual with or without Down syndrome and are interested in research participation, please follow the links below for more information.

Children and Adolescent Speech and Sound Reflection Study

Currently recruiting: Typically developing two year old and children with Down syndrome ages 2-17.

Quick Info:

  • This study enrolls infants and children under 18 years old.
  • We record the child's voice as he/she speaks words, sentences, and sounds.
  • Compensation is provided in exchange for participants' time.
  • See the study page for full information.

Adult Speech and Sound Reflection Study

Currently recruiting: Men and women with Down syndrome ages 18 & 19 years old.

Quick Info:

  • This study enrolls adults age 18 years and older.
  • Participants speak words, sentences, and sounds while we record their voices.
  • Compensation is provided in exchange for participants' time.
  • See the study page for more information.

Adult Speech Perception/Listening Study

Currently recruiting: Native English speakers ages 19 years and older.

Quick Info:

  • The study enrolls adults age 19 years and older.
  • Participants listen to speech samples and record what they hear.
  • Compensation is provided in exchange for participants' time.
  • See the study page for more information.