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Reduced Sensitivity to Negative Feedback May Lead to Risky Decision-Making in Amphetamine Users
Yu-Hua Liu1, Chiao-Yun Chen1, Neil G Muggleton2,3
1Department of Criminology, National Chung Cheng University, Chiayi, Taiwan.
Addiction Biology
|May 5, 2025
Summary
Amphetamine users exhibit impaired decision-making due to reduced sensitivity to negative feedback. This neural difference may explain their increased tendency for risky behaviors and difficulty learning from mistakes.
Area of Science:
- Neuroscience
- Psychology
- Addiction Research
Background:
- Amphetamine abuse is prevalent in Taiwan, often linked to risky decision-making.
- The neural underpinnings of this risky behavior in amphetamine users are not well understood.
Purpose of the Study:
- To investigate the relationship between neural mechanisms and risky decision-making in amphetamine abusers.
- To explore differences in behavioral control and response to negative feedback.
Main Methods:
- Utilized the Balloon Analogue Risk Task (BART) to assess risky decision-making.
- Employed event-related potential (ERP) recordings to measure neural responses.
- Administered questionnaires on behavioral control, including the Behavioral Inhibition System (BIS) scale.
Main Results:
- Amphetamine users scored lower on the BIS scale compared to controls.
- Users showed reduced amplitudes in feedback-related negativity (FRN) and error-related negativity (ERN) ERP components after negative feedback.
- Amphetamine users demonstrated decreased sensitivity to aversive stimuli.
Conclusions:
- Amphetamine users may have a reduced capacity to learn from mistakes due to diminished neural responses to negative feedback.
- This neural characteristic could contribute to a higher propensity for engaging in risky decision-making and repeated drug abuse.
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