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Operating in a second language lowers cognitive interference during creative idea generation: Evidence from brain
Rafał Jończyk1, Iga Krzysik2, Olga Witczak2
1Faculty of English, Adam Mickiewicz University, Grunwaldzka 6, Poznań 60-780, Poland; Cognitive Neuroscience Center, Adam Mickiewicz University, Uniwersytetu Poznanskiego 2, Poznań 61-614, Poland.
Neuroimage
|July 29, 2024
Summary
Bilinguals experience less cognitive interference when thinking creatively in their second language (L2) compared to their native language (L1). This suggests bilingualism may offer advantages for creative tasks by reducing mental interference.
Area of Science:
- Cognitive Neuroscience
- Psycholinguistics
- Creativity Research
Background:
- Human creativity heavily involves language comprehension and production.
- Bilingualism is widespread, yet its impact on creative output remains understudied.
- Bilinguals' enhanced inhibitory control may influence creative idea evaluation.
Purpose of the Study:
- To investigate how language of operation affects creative output in bilingual individuals.
- To examine cognitive interference and neural oscillations during creative tasks in L1 versus L2.
Main Methods:
- Utilized a modified Alternative Uses Task (AUT) with Polish(L1)-English(L2) bilinguals.
- Assessed creative output (idea originality, unusualness) and neural activity (EEG) across task cycles.
- Focused on cognitive interference and brain oscillations (alpha and beta bands).
Main Results:
- Bilinguals showed less cognitive interference generating unusual uses in L2 than L1.
- Idea originality was not significantly impacted by language of operation.
- Right posterior alpha power increased with task cycles, paralleling originality gains.
- Lower alpha power (8-10 Hz) was higher in L1, while greater beta desynchronization occurred in L2.
Conclusions:
- Creative output is largely unaffected by the language of operation in bilinguals.
- Reduced beta desynchronization in L2 suggests less interference from competing mental representations.
- Bilinguals may experience less 'semantic flooding' in their L2 during creative tasks compared to their L1.
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