Summary: Does a “reactive” brain make you more likely to drink? According to new research, the answer depends entirely on biological sex. By analyzing nearly 1,000 19-year-olds from the IMAGEN study, researchers found that a highly sensitive amygdala (the brain’s emotion and threat center) acts as a “double-edged sword.”
In young males, a reactive amygdala triggers depressive symptoms that lead to heavy drinking. In young females, however, the same neural sensitivity appears to be a protective factor, creating a “threat-avoidance” profile that actually lowers the risk of problematic drinking.
Key Facts
- The “Maturing Out” Window: While many young adults “mature out” of drinking, early heavy use in the late teens is a massive predictor of Alcohol Use Disorder (AUD) in later life.
- Closing the Gap: Historically, studies on depression-related drinking provided inconsistent results. This research suggests those inconsistencies existed because scientists weren’t looking at the sex-specific neural origins of those moods.
- The IMAGEN Data: The study utilized fMRI data from 958 participants, observing their reactions to “threatening faces” to measure how their brains handled social stress.
- Targeted Intervention: The findings suggest that prevention programs should be tailored; while depression is a universal risk, the neural driver of that depression (and its link to alcohol) is different for men and women.
Source: Elsevier
New research shows that the threat-response in the brain’s amygdala (which processes emotions) is linked to different patterns of drinking by sex.
In young males, heightened amygdala reactivity was linked to increased depressive symptoms, which in turn predicted heavier alcohol consumption. In young females, no such pathway existed. Instead, greater amygdala reactivity was associated with lower levels of problematic drinking.
The findings from the study in Biological Psychiatry, published by Elsevier, address a critical gap in our understanding of the underlying neurological mechanisms that lead to harmful drinking patterns in males and females, which is increasingly important for designing effective prevention and intervention programs.
Problematic alcohol use is most prevalent during young adulthood, a period characterized by increased frequency of drinking and elevated rates of binge consumption. While alcohol use often declines with increasing age (“maturing out”), early and frequent alcohol use in adolescence is associated with an increased risk of developing Alcohol Use Disorder later in life.
Previous findings on sex differences in depression-related drinking have been inconsistent. “Some studies found depressive symptoms more predictive of alcohol problems in women, others in men, and nobody really had a good explanation as to why,” explains lead author Annika Rosenthal, PhD, Department of Psychiatry and Psychotherapy CCM, Charité – Universitätsmedizin Berlin, and Department of Psychology, MSB Medical School Berlin.
“We thought that looking at the underlying neuroscience, specifically at how the brain processes negative emotions, might help clarify things. The amygdala was an obvious candidate given its established role in both mood disorders and alcohol use.”
Previous research has linked amygdala reactivity to both depression and alcohol use separately, but biological sex was rarely examined as a formal moderator. This study addresses that gap.
Researchers analyzed data from 958 19-year-olds in the IMAGEN study, a large European multisite research project that tracks adolescent brain development. Participants underwent functional MRI (fMRI) while viewing video clips of faces displaying threatening expressions.
Amygdala activation in response to these stimuli was then measured. The investigators tested whether this neural measure predicted hazardous drinking, with depressive symptoms as a mediator and biological sex as a moderator.
The study found that male participants reported higher levels of problematic drinking, while female participants reported more depressive symptoms. The research team was surprised to find that despite higher depression scores, females did not show the neural pathway linking brain responses to drinking that was found in males. Specifically, the path from amygdala activation to depressive symptoms was significant in males but not in females.
“Additionally, we observed a highly significant negative association specifically in females: greater neural threat sensitivity was linked to lower alcohol risk scores. This suggests a ‘threat-avoidance’ profile in young females, where a more reactive amygdala may actually act as a protective factor against hazardous drinking.
While the overall statistical difference between biological sexes for this specific direct link was just above the traditional threshold, the effect within the female group was striking,“ notes Dr. Rosenthal.
Importantly, the sex difference emerged in the link between amygdala reactivity and depressive symptoms, rather than in how depressive symptoms related to drinking.
John Krystal, MD, Editor of Biological Psychiatry, concludes, “We can now point to a specific neural mechanism in the relationship between amygdala activation and heavy drinking: the amygdala’s response to social threat appears to feed into depressive symptoms much more strongly in young males than in young females.
“This adds to growing insights into differences in the drivers of pathological drinking in men and women, which can help to develop more targeted prevention and intervention.”
Based on these findings, the study’s authors suggest that while targeting depressive symptoms is important for everyone, the neural origins of those symptoms may differ by biological sex. These findings highlight the importance of considering sex-specific mechanisms, while warranting further research to better understand their implications.
Key Questions Answered:
A: Researchers call this a “threat-avoidance” profile. If your amygdala is highly sensitive, you might be more naturally cautious. Since binge drinking is a high-risk behavior that often leads to social or physical threats, a highly reactive “alarm system” in the brain may subconsciously encourage you to stay away from those situations.
A: That was the study’s biggest surprise. Even though the female participants reported more depressive symptoms overall, their depression wasn’t triggered by the amygdala-threat pathway in the same way it was for men. This means the source of their depression, and how they handle it, comes from different brain circuits.
A: We aren’t there yet, but it’s a major step forward. By identifying this specific “amygdala-to-depression” link in males, clinicians could eventually use neural screenings to identify high-risk boys early and teach them coping mechanisms for social stress before they turn to the bottle.
Editorial Notes:
- This article was edited by a Neuroscience News editor.
- Journal paper reviewed in full.
- Additional context added by our staff.
About this AUD and neuroscience research news
Author: Eileen Leahy
Source: Elsevier
Contact: Eileen Leahy – Elsevier
Image: The image is credited to Neuroscience News
Original Research: Open access.
“The Sex-Dependent Relationship Between Amygdala Activation and Depressive Symptoms With Problematic Drinking” by Annika Rosenthal, Marcus Rothkirch, Samanda Krasniqi, Erik L. Bode, Laura S. Daedelow, Tobias Banaschewski, Gareth J. Barker, Arun L.W. Bokde, Rüdiger Brühl, Sylvane Desrivières, Herta Flor, Hugh Garavan, Penny Gowland, Antoine Grigis, Jean-Luc Martinot, Marie-Laure Paillère Martinot, Eric Artiges, Frauke Nees, Dimitri Papadopoulos Orfanos, Luise Poustka, Michael N. Smolka, Nathalie Holz, Nilakshi Vaidya, Henrik Walter, Robert Whelan, Paul Wirsching, Gunter Schumann, and Andreas Heinz, on behalf of the IMAGEN Consortium. Biological Psychiatry
DOI:10.1016/j.biopsych.2026.02.007
Abstract
The Sex-Dependent Relationship Between Amygdala Activation and Depressive Symptoms With Problematic Drinking
Background
Although the initiation of alcohol consumption is common during adolescence, some individuals engage in binge drinking behavior that could lead to harmful consequences such as developing alcohol use disorder later in life. Evidence suggests a relationship between depressive symptoms and harmful alcohol consumption that seems to vary depending on sex.
Furthermore, it has been suggested that amygdala activation in response to negative emotional stimuli influences drinking due to depressive mood states. Therefore, we expected a sex-dependent effect of neuronal activation and depressive symptoms on risky drinking.
Methods
Here, we tested our hypothesis using a large dataset of 19-year-old participants (n = 958) in the IMAGEN study. Amygdala activation during an emotional faces task was extracted and entered into sex-moderated mediation models that also included scores from the Alcohol Use Disorders Identification Test and the Adolescent Depression Rating Scale.
Results
Moderated mediation models indicated that amygdala activation was associated with hazardous drinking through enhanced depressive symptoms in males, while amygdala reactivity in females was associated with decreased risky drinking.
Conclusions
Taken together, our findings reveal sex differences in negative emotional processing in at-risk adolescents. These associations have the potential to inform the development of sex-specific strategies as well as the detection of early neuronal risk factors to effectively curtail alcohol risk behavior.
