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Early bilingual experience is associated with change detection ability in adults
Dean D'Souza1, Daniel Brady2, Jennifer X Haensel3,4
1Faculty of Science and Engineering, Anglia Ruskin University, Cambridge, UK. dean.dsouza@aru.ac.uk.
Scientific Reports
|January 23, 2021
Summary
Early bilinguals show enhanced attention shifting abilities compared to late bilinguals. This suggests lifelong cognitive benefits from acquiring a second language early in life.
Area of Science:
- Cognitive Science
- Developmental Psychology
- Neuroscience
Background:
- Infants in bilingual environments may develop more frequent visual attention shifts to process varied language input.
- It remains unclear if these early cognitive adaptations persist into adulthood.
Purpose of the Study:
- To investigate whether early bilingualism confers lasting advantages in attention shifting and change detection into adulthood.
- To compare cognitive performance between early and late bilingual adults.
Main Methods:
- Participants included early and late bilingual adults.
- An experiment involved presenting visual stimuli with subtle, almost imperceptible changes.
- Eye-tracking measured participants' visual attention shifts and fixation patterns.
Main Results:
- Early bilingual adults demonstrated faster attention disengagement and shifting.
- Early bilinguals were quicker at detecting subtle changes between visual stimuli.
- A shift in visual fixation towards a changing stimulus was observed in early but not late bilinguals.
Conclusions:
- Early bilingualism enhances cognitive flexibility, specifically in attention control.
- The ability to adapt cognitive processes to early language environments appears to have long-term benefits.
- These findings suggest that the timing of second language acquisition impacts adult cognitive functions.
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