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NCT Number: NCT07226921

Language Control Across Modalities

This study aims to investigate how unimodal bilinguals who speak two languages and bimodal bilinguals who speak one language and sign another control languages across comprehension and production. Participants will complete different language tasks (e.g., classify a word, name a picture) in different languages, and their behavioral performance will be assessed, including accuracy and reaction time.

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Key information

Conditions

Healthy

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Proficient in both Mandarin and English, or proficiency in both ASL and English

Exclusion criteria

  • Know a third language better than Mandarin/English or better than ASL/English
  • With language disorder or other neurological disorders

Treatment and study plan

Predictability

Behavioral

Whether the task of the next trial (comprehension or production) is predictable

language context

Behavioral

whether both languages or only one language is involved in the current block

Primary outcomes

  1. Switch costs in different contexts

    Time frame: An average of one year for each condition

Sponsors and collaborators

Lead sponsor

University of California, San Diego

Other

Collaborators

  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Registry information

Official study title

Language Control Across Comprehension and Production in Unimodal and Bimodal Bilinguals

Important dates

Study start
2025
Primary completion
2030
Study completion
2030
First posted
Nov 12, 2025
Registry last updated
Nov 12, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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