How VTA brain cells that release both GABA and glutamate affect motivation and mood
Balancing motivation through VTA GABA/Glutamate co-transmission
This project looks at how a group of brain cells that release two chemicals controls motivation and mood, with the goal of helping people with depression or bipolar disorder.
Quick facts
| Grant type | NIH-funded research |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Dartmouth College NIH-funded |
| Lab location | 1 site (Hanover, United States) |
| Project ID | NIH-11176347 on NIH RePORTER |
What this research studies
From my perspective as a patient, researchers are focusing on a small brain area called the ventral tegmental area (VTA) that contains neurons which release both inhibitory (GABA) and excitatory (glutamate) signals. They will use in vivo calcium imaging to watch the activity of these VTA terminals that connect to the amygdala while animals behave in situations involving reward and aversion. The team will also manipulate these pathways to see how changes in their activity alter motivated behavior and mood-like responses. Findings are intended to reveal circuit mechanisms that could guide future treatments for depression and bipolar disorder.
Who could benefit from this research
Good fit: People with major depressive disorder or bipolar affective disorder who are interested in contributing to research that could inform future treatments would be the most relevant group.
Not a fit: People seeking immediate treatment changes or those without mood disorders are unlikely to see direct benefits because this is lab-based, preclinical work aimed at long-term understanding.
Why it matters
Potential benefit: If successful, this work could point to new brain targets for therapies to better control motivation and mood in depression and bipolar disorder.
How similar studies have performed: Prior animal studies show VTA circuits shape reward and aversion, but the specific role of neurons that co-release GABA and glutamate is relatively new and less well tested.
Where this research is happening
Hanover, United States
- Dartmouth College — Hanover, United States (Active)
Researchers
- Principal investigator: Warlow, Shelley May — Dartmouth College
- Study coordinator: Warlow, Shelley May
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page below.