NIH-funded research R01 grant

Understanding how seasonal changes affect aggression in humans

Official title: A Seasonal Switch: Alternative Neuroendocrine Mechanisms Regulating Aggression

Funded at Trustees of Indiana University · NIH-11108521 · Data updated 2026-11-12

This study is looking at how the hormone melatonin affects aggressive behavior and how it interacts with other hormones, hoping to find new ways to help people with conditions like ADHD, autism, and mood disorders.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionTrustees of Indiana University
NIH-funded
Lab location1 site (Bloomington, United States)
Project startMay 8, 2025
Project endFebruary 28, 2030
Funding year2025
Award (this year)$727,895
NIH project number1R01MH139864-01
Project IDNIH-11108521 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research include individuals diagnosed with ADHD, autism spectrum disorders, or other mood and anxiety disorders characterized by aggressive behavior.

Less likely to help

Patients who do not exhibit aggressive behavior or do not have related psychiatric conditions may not benefit from this research.

What this research studies

This research investigates the biological mechanisms that regulate aggressive behavior, particularly focusing on how the hormone melatonin influences aggression through adrenal hormones. By examining the interplay between environmental factors and neuroendocrine responses, the study aims to uncover the underlying causes of pathological aggression associated with various psychiatric disorders. Patients may benefit from insights gained into how these mechanisms operate, potentially leading to new treatment strategies for conditions like ADHD, autism, and mood disorders.

Why it matters

Potential benefit: If successful, this research could lead to improved treatments for individuals experiencing pathological aggression linked to psychiatric disorders.

How similar studies have gone: Previous research has shown promising results in understanding the neuroendocrine mechanisms of aggression, suggesting that this approach could yield valuable insights.

Where this research is happening

  • Trustees of Indiana University
    Bloomington, United States
    Active

Researchers

  • Principal investigator: Demas, Gregory E — Trustees of Indiana University
  • Study coordinator: Demas, Gregory E

Related research

Other NIH-funded projects on the same topics.

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.