Time-Varying Neural Oscillations Underlying the Foreign-Language Effect on Risk-Taking

Area of Science:

• Cognitive Neuroscience
• Psycholinguistics
• Decision Science

Background:

• Foreign-language use can alter cognitive processes, including decision-making.
• Previous research suggests a foreign-language effect on risk-taking behavior, particularly concerning biases like the hot-hand fallacy.

Purpose of the Study:

• To investigate the neural mechanisms underlying the foreign-language effect on decision-making.
• To examine how processing information in a native versus foreign language affects emotional feedback encoding and subsequent risk-taking behavior.

Main Methods:

• Neural oscillations (alpha and theta activity) were measured during a gambling task.
• Participants made decisions in both their native language (Chinese) and a foreign language (English).
• Feedback valence (positive/negative outcomes) was presented in either language.

Main Results:

• Positive feedback in English led to greater alpha suppression compared to Chinese, indicating increased attentional demands.
• Theta synchronization decreased after positive feedback in English versus Chinese, suggesting reduced emotional impact.
• Language differences in neural activity correlated with behavioral choices, specifically the proportion of "play" decisions after positive feedback.

Conclusions:

• Processing information in a foreign language modulates neural responses to emotional feedback.
• The foreign-language effect reduces the emotional significance of feedback, thereby influencing risk-taking behavior and potentially mitigating biases like the hot-hand fallacy.
• Neural evidence supports the role of processing fluency in mediating the foreign-language effect on risk-taking.