How cerebellum brain chemicals affect keeping or letting go of fearful memories
Official title: The role of cerebellar endocannabinoids in the reconsolidation and extinction of fear memory
Funded at Southeast Louisiana Veterans Health Care · NIH-11213978 · Data updated 2026-11-12
This work looks at whether a natural brain chemical in the cerebellum can help weaken traumatic fear memories for people with PTSD, including veterans.
Quick facts
| Grant type | NIH-funded research |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Southeast Louisiana Veterans Health Care NIH-funded |
| Lab location | 1 site (New Orleans, United States) |
| Project start | October 1, 2023 |
| Project end | September 30, 2027 |
| Funding year | 2026 |
| NIH project number | 5I01BX006043-03 |
| Project ID | NIH-11213978 on NIH RePORTER |
Who could benefit from this research
✓Could help
People with PTSD—especially veterans—with ongoing, fear-based symptoms that have not fully responded to current treatments would be the most likely candidates for future therapies based on this work.
✕Less likely to help
Patients whose problems are driven mainly by non–fear mechanisms (for example, primarily mood disorders, cognitive impairment, or active substance dependence) may not benefit directly from these findings.
What this research studies
You should know that researchers are studying how the cerebellum and a natural signaling molecule called 2-AG influence whether fearful memories stick or fade. Most experiments use lab models (animals) and lab-based methods to change 2-AG levels or related enzymes in the cerebellum and then measure fear extinction and reconsolidation after memory recall. The team compares approaches that promote extinction (learning safety) with those that make a memory temporarily fragile after recall, using drugs or molecular tools. Results aim to point to biological targets that could be tested later in people with persistent fear from trauma.
Why it matters
Potential benefit: If successful, this could point to new drug or therapeutic targets to reduce persistent fear memories in PTSD.
How similar studies have gone: Preclinical animal studies have shown that changing endocannabinoid signaling can alter fear extinction and reconsolidation, but human trials translating these findings are limited.
Where this research is happening
-
Southeast Louisiana Veterans Health Care
New Orleans, United States Active
Researchers
- Principal investigator: Liu, Siqiong June — Southeast Louisiana Veterans Health Care
- Study coordinator: Liu, Siqiong June
Related research
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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.