Intertemporal Decision-Making, Nucleus Accumbens Activation, and Alcohol Use Trajectories in Young Adults With a Family History of Alcohol Use Disorder
All Authors:
Amanda Elton 1,2,3,4 | Jacqueline Aloumanis 2,3 | JeeWon Cheong 3,5 | J. Hunter Allen 4 | Jill A. Star 1 | Sara Jo Nixon 1,2,3
1 Department of Psychiatry, University of Florida, Gainesville, Florida, USA
2 Department of Neuroscience, University of Florida, Gainesville, Florida,USA
3 Center for Addiction Research & Education, University of Florida, Gainesville, Florida, USA
4 Department of Psychology and Neuroscience, University of North Carolina, Chapel Hill, North Carolina, USA
5 Department of Health Education & Behavior, University of Florida, Gainesville, Florida, USA
Published in:
Alcohol: Clinical and Experimental Research
What’s this study about?
Researchers studied whether brain activity can help explain why young adults with a family history of alcohol use disorder (AUD) may be at greater risk of developing alcohol-related problems. They looked at how college students made choices between smaller rewards right away or larger rewards later while their brain activity was measured using MRI scans. The students’ alcohol use was then tracked for three years.
Key findings:
Students with a family history of alcohol use disorder showed greater activity in the brain’s reward center, called the nucleus accumbens, when making decisions about rewards. This increased brain activity was linked to greater increases in alcohol use over the next three years, suggesting it may help predict who is at higher risk.
Why it matters:
These findings help explain how a family history of alcohol use disorder may increase the risk of unhealthy drinking. In the future, brain imaging could help identify young people who are more vulnerable to addiction and support more personalized prevention and treatment strategies.