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An altered neural response to reward may contribute to alcohol problems among late adolescents with an evening chronotype
Changes in the brain's reward response may be linked to alcohol problems in late teens who prefer evenings
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Abstract
Evening-types exhibited greater levels of alcohol dependence and worse sleep quality compared to morning-types.
- Evening-types showed altered neural responses to reward, with reduced activation in the medial prefrontal cortex during reward anticipation.
- Increased reactivity in the ventral striatum during win outcomes was observed in evening-types compared to morning-types.
- Less activation in the medial prefrontal cortex was associated with higher alcohol consumption among evening-types.
- Greater activation in the ventral striatum in response to reward correlated with more symptoms of alcohol dependence.
- Evening-types reported higher levels of sensation-seeking behaviors and substance involvement.
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