A brain circuit that links movement and mood in Parkinson's disease
The Pallidohabenular System in Parkinsonism
This research looks at how a specific brain pathway connecting the pallidum and habenula changes in Parkinson's and how that might affect movement and mood.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Emory University NIH-funded |
| Lab location | 1 site (Atlanta, United States) |
| Project ID | NIH-11247984 on NIH RePORTER |
What this research studies
Researchers will examine a small group of neurons in the internal pallidum that send signals to the lateral habenula and compare them to other pallidal cells. They will use animal models of Parkinson's (including MPTP-treated monkeys and rodents) to look at wiring, synapses, neurotransmitter content, and electrical activity. The team will map incoming cortical glutamate inputs, study how those inputs relate to other afferents, and record neuronal responses after dopamine loss. By comparing normal and parkinsonian animals, they aim to identify changes that could help explain both movement and mood symptoms.
Who could benefit from this research
Good fit: People with Parkinson's disease who are interested in research on the brain circuits behind movement and mood, and who might consider participating in future related clinical studies or sample donations, would be most relevant.
Not a fit: Patients seeking immediate new treatments or people without Parkinson's are unlikely to receive direct short-term benefits from this basic neuroscience project.
Why it matters
Potential benefit: If successful, this work could reveal new targets for therapies that improve motor control and mood in people with Parkinson's disease.
How similar studies have performed: Previous animal studies have shown this pathway carries negative valence signals and influences dopamine and serotonin systems, but detailed synaptic and electrophysiological work in Parkinson's models is relatively new.
Where this research is happening
Atlanta, United States
- Emory University — Atlanta, United States (Active)
Researchers
- Principal investigator: Smith, Yoland — Emory University
- Study coordinator: Smith, Yoland
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.