How life experiences change reward learning and addiction risk
Experience-Dependent Regulation of Reward Learning and Addiction Vulnerability
['FUNDING_R01'] · UNIVERSITY OF TEXAS AT AUSTIN · NIH-11249144
This project tests whether stress strengthens and daily exercise weakens brain learning that makes people more likely to develop addiction.
Quick facts
| Phase | ['FUNDING_R01'] |
|---|---|
| Study type | Nih_funding |
| Sex | All |
| Sponsor | UNIVERSITY OF TEXAS AT AUSTIN (nih funded) |
| Locations | 1 site (AUSTIN, UNITED STATES) |
| Trial ID | NIH-11249144 on ClinicalTrials.gov |
What this research studies
From a patient's view, researchers use rat experiments to see how stressful events or regular exercise change the way dopamine cells in a key brain area learn to link cues (like drug-related sights or smells) with rewards. They train animals to associate cues with drugs or tasty food and record changes in specific synapses and signaling (NMDA-related plasticity) in the ventral tegmental area. The team compares stressed animals to those given daily exercise to see if exercise can blunt cue-driven, craving-like brain responses. Findings aim to reveal brain rules that could guide new prevention or relapse-reduction strategies.
Who could benefit from this research
Good fit: This research is most relevant for people with current or past substance use disorders or those who experience strong cue-triggered cravings.
Not a fit: People whose addiction is driven mainly by social, legal, or non-cue medical factors may not see direct benefit from these specific biological findings.
Why it matters
Potential benefit: If successful, this work could point to new prevention strategies—such as exercise programs or drug targets—that reduce cue-triggered cravings and relapse.
How similar studies have performed: Previous animal studies have shown exercise can reduce drug-seeking and that stress worsens addiction-like behaviors, but linking those effects to NMDA plasticity in VTA dopamine neurons is relatively novel.
Where this research is happening
AUSTIN, UNITED STATES
- UNIVERSITY OF TEXAS AT AUSTIN — AUSTIN, UNITED STATES (ACTIVE)
Researchers
- Principal investigator: MORIKAWA, HITOSHI — UNIVERSITY OF TEXAS AT AUSTIN
- Study coordinator: MORIKAWA, HITOSHI
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.