Healthy
Conditions
Keywords
language control, bilingual adults, reaction time
Brief summary
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.
Interventions
BEHAVIORALPredictability
Whether the task of the next trial (comprehension or production) is predictable
BEHAVIORALlanguage context
whether both languages or only one language is involved in the current block
Sponsors
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
University of California, San Diego
Study design
Allocation
RANDOMIZED
Intervention model
FACTORIAL
Primary purpose
BASIC_SCIENCE
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes
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
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Switch costs in different contexts | An average of one year for each condition |
Countries
United States
Outcome results
None listed