Impact of learning American Sign Language later in life on language processing

Effects of late first language acquisition on phonological processing in American Sign Language

['FUNDING_FELLOWSHIP'] · UNIVERSITY OF CALIFORNIA, SAN DIEGO · NIH-11004257

This study looks at how learning American Sign Language later in life affects how deaf children from hearing families understand and use the language, helping us learn more about their communication skills and thinking abilities.

Quick facts

Phase['FUNDING_FELLOWSHIP']
Study typeNih_funding
SexAll
SponsorUNIVERSITY OF CALIFORNIA, SAN DIEGO (nih funded)
Locations1 site (LA JOLLA, UNITED STATES)
Trial IDNIH-11004257 on ClinicalTrials.gov

What this research studies

This research investigates how acquiring American Sign Language (ASL) later in life affects the way individuals process the sounds and structures of the language. It focuses on deaf children who grow up in hearing families and may not learn ASL until after the critical period for language development. By examining the phonological processing abilities of these individuals, the study aims to uncover the long-term effects of late language acquisition on communication skills and cognitive functions. Participants will engage in assessments that analyze their ability to perceive and produce various parameters of ASL, such as handshapes and movements.

Who could benefit from this research

Good fit: Ideal candidates for this research include deaf individuals who acquired ASL after early childhood and are currently between the ages of 0 to 21 or adults over 21.

Not a fit: Patients who are native signers of ASL or those who acquired it from birth are unlikely to benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to improved educational strategies and support for late learners of ASL, enhancing their communication skills and overall quality of life.

How similar studies have performed: Previous research has shown significant effects of late language acquisition on communication outcomes, indicating that this area of study is both relevant and important.

Where this research is happening

LA JOLLA, UNITED STATES

Researchers

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 below.

View on NIH RePORTER →

Last reviewed 2026-05-15 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.