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Recognition of Second Language Spoken Words, Signs, and Characters Via Perception and Production in Adults

Sponsor
University of Alabama, Tuscaloosa (Other)
Overall Status
Not yet recruiting
CT.gov ID
NCT05587218
Collaborator
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) (NIH)
120
Enrollment
1
Location
2
Arms
32.5
Anticipated Duration (Months)
3.7
Patients Per Site Per Month

Study Details

Study Description

Brief Summary

Self-production facilitates acquisition of spoken words, signs, and characters from an unfamiliar second language. The proposed work investigates how motor cortex, a key part of the brain enabling body action, supports their acquisition via production as well as perception, providing insight into whether they are learned via mental simulation of the body actions used to produce them. It is hypothesized that activity in motor cortex will differ based on the body part used to produce lexical items (e.g., mouth vs. hands), will be greater for lexical items learned via production than observation, and will differentiate lexical items recognized successfully vs. unsuccessfully.

Condition or Disease Intervention/Treatment Phase
  • Behavioral: Self-production
 N/A

Study Design

Study Type:
Interventional
Anticipated Enrollment :
120 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Single (Participant)
Primary Purpose:
Basic Science
Official Title:
How Motor Cortex Supports L2 Acquisition of Spoken Words, Signs, and Characters Via Perception and Production
Anticipated Study Start Date :
Aug 23, 2023
Anticipated Primary Completion Date :
May 8, 2026
Anticipated Study Completion Date :
May 8, 2026

Arms and Interventions

Arm Intervention/Treatment
Experimental: Self-production

L2 lexical items self-produced at learning

Behavioral: Self-production
After participants learn L2 lexical items via hearing or observing them paired with L1 translations, they are prompted to produce them themselves
Active Comparator: Perception

L2 lexical items heard or observed an additional time at learning

Behavioral: Self-production
After participants learn L2 lexical items via hearing or observing them paired with L1 translations, they are prompted to produce them themselves

Outcome Measures

Primary Outcome Measures

  1. Functional activity in motor cortex location, 5 min, recognition [5 minutes after learning]

    Location of Blood Oxygen Level Dependent (BOLD) signal in motor cortex at recognition

  2. Functional activity in motor cortex degree, 5 min, recognition [5 minutes after learning]

    Degree of Blood Oxygen Level Dependent (BOLD) signal in motor cortex at recognition

  3. Functional activity in motor cortex location, 1 week, recognition [1 week after learning]

    Location of Blood Oxygen Level Dependent (BOLD) signal in motor cortex at recognition

  4. Functional activity in motor cortex degree, 1 week, recognition [1 week after learning]

    Degree of Blood Oxygen Level Dependent (BOLD) signal in motor cortex at recognition

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years to 35 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
Yes
Inclusion Criteria:

  • Right-handed

  • Native English speaker

Exclusion Criteria:

  • Knowledge of sign language or languages with logographic characters

  • Hearing or vision impairments

  • Speech, language, or learning disorders

  • Unsecured metal body implants

Contacts and Locations

Locations

Site City State Country Postal Code
1 University of Alabama, Tuscaloosa Tuscaloosa Alabama United States 35487

Sponsors and Collaborators

  • University of Alabama, Tuscaloosa
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Investigators

  • Principal Investigator: Laura Morett, Ph.D., University of Alabama, Tuscaloosa

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
University of Alabama, Tuscaloosa
ClinicalTrials.gov Identifier:
NCT05587218
Other Study ID Numbers:
  • L2WordProd
First Posted:
Oct 20, 2022
Last Update Posted:
Oct 20, 2022
Last Verified:
Sep 1, 2022
Individual Participant Data (IPD) Sharing Statement:
Yes
Plan to Share IPD:
Yes
Studies a U.S. FDA-regulated Drug Product:
No
Studies a U.S. FDA-regulated Device Product:
No
Keywords provided by University of Alabama, Tuscaloosa
Second language
Word learning
Self-production

Study Results

No Results Posted as of Oct 20, 2022