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Sex differences shape stress-induced alcohol-seeking

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Research area:psychology-neuroscienceneuroscience-neuroengineering

What the study found

The study found sex differences in how depression and anxiety symptoms relate to stress-induced alcohol-seeking. Generalized anxiety symptoms were associated with greater stress-induced alcohol-seeking in women but not in men, and depression showed a similar pattern without reaching statistical significance.

Why the authors say this matters

The authors conclude that identifying mechanisms behind sex-specific relationships with stress-induced alcohol-seeking can inform tailored intervention approaches. They suggest this may ultimately enhance treatment efficacy for both men and women.

What the researchers tested

This was a secondary analysis of a previously published trial of 84 adults aged 21 to 55 who reported moderate-to-heavy alcohol use. Participants completed two counterbalanced intravenous alcohol administration sessions, and 54 also completed optional neuroimaging; the analysis examined subjective alcohol responses and resting-state functional connectivity of the amygdala and hippocampus, brain regions involved in anxiety and depression.

What worked and what didn't

Across men and women, blunted state stimulation in response to alcohol, but not state anxiety, was associated with greater stress-induced alcohol-seeking. In men, anxiety symptoms were linked with heightened state stimulation effects, which appeared to buffer against stress-induced alcohol-seeking. Subjective alcohol responses did not mediate the relationship between depression symptoms and stress-induced alcohol-seeking, and resting-state network connectivity findings identified several potential sex-dependent neural mechanisms that warrant further investigation.

What to keep in mind

The study was a secondary analysis and was not originally designed as a direct test of competing theoretical models. Only 54 participants completed the optional neuroimaging component, and the abstract does not provide further limitations beyond noting that some findings warrant additional investigation.

Key points

  • Generalized anxiety symptoms were associated with greater stress-induced alcohol-seeking in women, but not in men.
  • Depression symptoms showed a similar pattern, but the results did not reach statistical significance.
  • Blunted state stimulation in response to alcohol was associated with greater stress-induced alcohol-seeking across men and women.
  • In men, anxiety symptoms were linked with heightened state stimulation effects that appeared to buffer against stress-induced alcohol-seeking.
  • Subjective alcohol responses did not mediate the depression–stress-induced alcohol-seeking relationship.
  • Resting-state connectivity of the amygdala and hippocampus suggested possible sex-dependent neural mechanisms.

Disclosure

Research title:
Sex differences shape stress-induced alcohol-seeking
Authors:
Anna C. S. Garrison, Evgeny J. Chumin, Mario Džemidžić, Julia Smith, Wei Wu, Ann Kosobud, David A. Kareken, Sean O’Connor, Martin H. Plawecki, Melissa A. Cyders
Institutions:
Indiana University – Purdue University Indianapolis, Indiana University – Purdue University Indianapolis, Indiana University – Purdue University Indianapolis, Indiana University – Purdue University Indianapolis, Indiana University – Purdue University Indianapolis, Indiana University – Purdue University Indianapolis, Indiana University – Purdue University Indianapolis, Indiana University – Purdue University Indianapolis, Indiana University – Purdue University Indianapolis, Indiana University – Purdue University Indianapolis, Indiana University Indianapolis, Indiana University Indianapolis, Indiana University Indianapolis, Indiana University Indianapolis, Indiana University School of Medicine, Indiana University School of Medicine, Indiana University School of Medicine, Indiana University School of Medicine, Indiana University School of Medicine, Indiana University School of Medicine
Publication date:
2026-02-23
DOI:
10.3390/bs16020311
OpenAlex record:
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AI provenance: This post was generated by gpt-5.4-mini (OpenAI). The original authors did not write or review this post.

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