How stress blocks learning that reduces fear
Neural Circuits for Stress-Impaired Extinction Learning
['FUNDING_R01'] · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · NIH-11318942
This work looks at how stress changes brain circuits so people with anxiety or trauma have trouble learning to reduce fear.
Quick facts
| Phase | ['FUNDING_R01'] |
|---|---|
| Study type | Nih_funding |
| Sex | All |
| Sponsor | UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN (nih funded) |
| Locations | 1 site (CHAMPAIGN, UNITED STATES) |
| Trial ID | NIH-11318942 on ClinicalTrials.gov |
What this research studies
Researchers use animal models to trace brain circuits connecting stress-sensitive cells in the amygdala with noradrenergic neurons in the locus coeruleus and the medial prefrontal cortex. They apply tools like chemogenetics and electrophysiology to turn specific neurons on or off and see how that affects extinction learning, the brain process behind exposure therapy. The team focuses on CRF-expressing neurons in the central amygdala driving LC-to-amygdala signaling that appears to make the basolateral amygdala overactive and suppress the mPFC. The goal is to identify circuit targets that could be translated into ways to make exposure-based therapies more effective when patients are stressed.
Who could benefit from this research
Good fit: People with anxiety disorders or trauma-related disorders (such as PTSD) who experience relapse or poor response to exposure-based therapies, especially under high stress, would be most relevant to these findings.
Not a fit: Patients without fear- or trauma-related disorders or those not treated with exposure-based therapies are unlikely to see direct benefit from this basic neuroscience work in the near term.
Why it matters
Potential benefit: If successful, this work could point to new targets or strategies to make exposure therapy more resilient to stress for people with anxiety or trauma-related disorders.
How similar studies have performed: Previous animal and human research has linked the amygdala, locus coeruleus, and prefrontal cortex to fear and extinction, but the proposed CRF-to-LC-to-BLA pathway is a newer, relatively untested mechanism.
Where this research is happening
CHAMPAIGN, UNITED STATES
- UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN — CHAMPAIGN, UNITED STATES (ACTIVE)
Researchers
- Principal investigator: MAREN, STEPHEN — UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN
- Study coordinator: MAREN, STEPHEN
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.
Conditions: Anxiety Disorders