NIH-funded research R21 grant

Understanding how brain cells influence decision-making in conflict situations

Official title: Characterizing the role of ventral pallidal astrocytes in approach/avoidance conflict

Funded at University of Puerto Rico Med Sciences · NIH-11147014 · Data updated 2026-11-12

This study is looking at special brain cells in mice that might help us understand how we make choices when we feel torn between wanting something good and wanting to stay safe, which could help us learn more about anxiety, depression, and addiction.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionUniversity of Puerto Rico Med Sciences
NIH-funded
Lab location1 site (San Juan, United States)
Project startApril 1, 2025
Project endMarch 31, 2027
Funding year2025
Award (this year)$409,750
NIH project number1R21MH137593-01A1
Project IDNIH-11147014 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are individuals experiencing anxiety, depression, or addiction, as these conditions are linked to approach/avoidance conflicts.

Less likely to help

Patients who do not have issues related to anxiety, depression, or addiction may not benefit from this research.

What this research studies

This research investigates the role of specific brain cells called astrocytes in the ventral pallidum region, which are thought to influence how we make decisions when faced with conflicting motivations, such as wanting to approach something rewarding versus avoiding something threatening. Using advanced techniques like fiber photometry and optogenetics, the researchers will study how these astrocytes behave during these decision-making processes in mice. The findings could provide insights into the underlying mechanisms of anxiety, depression, and addiction, which often involve compromised decision-making.

Why it matters

Potential benefit: If successful, this research could lead to new therapeutic strategies for treating anxiety, depression, and addiction by targeting the mechanisms of decision-making.

How similar studies have gone: While the role of astrocytes in other brain functions has been studied, this specific investigation into their influence on approach/avoidance conflict is relatively novel and untested.

Where this research is happening

  • University of Puerto Rico Med Sciences
    San Juan, United States
    Active

Researchers

  • Principal investigator: Bravo-Rivera, Christian Emmanuell — University of Puerto Rico Med Sciences
  • Study coordinator: Bravo-Rivera, Christian Emmanuell

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.