How nicotine changes brain circuits that drive cravings and cue-triggered smoking
Anatomical Basis for Nicotine Addiction
This project looks at how nicotine alters specific brain pathways so that cues like places, people, or smells trigger stronger cravings in people who smoke.
Quick facts
| Grant type | R37 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Yale University NIH-funded |
| Lab location | 1 site (New Haven, United States) |
| Project ID | NIH-11292835 on NIH RePORTER |
What this research studies
From your perspective, researchers are mapping the specific brain circuits nicotine changes using laboratory experiments that mostly use animal models to mimic human addiction. They focus on two newly identified circuits (a GABA pathway from the VTA to VP and an acetylcholine pathway from the medial septum to the amygdala) and on protein-level changes in brain areas involved in cue-driven reward. The team uses anatomical mapping, circuit manipulation, and proteomics to see how nicotine strengthens cue-reward learning and increases responding to rewards. The goal is to link these detailed brain changes to the cue-driven urges that make quitting difficult and to identify targets for future treatments.
Who could benefit from this research
Good fit: People who currently smoke and experience strong, cue-triggered cravings (for example, cravings triggered by places, smells, or social situations) would be the most likely future candidates for trials based on this work.
Not a fit: People whose tobacco use is driven mainly by non-cue factors (for example, severe withdrawal symptoms, comorbid psychiatric conditions, or social determinants) may not directly benefit from findings focused on cue-reward circuits.
Why it matters
Potential benefit: If successful, this work could point to specific brain targets that new medicines or therapies might use to reduce cue-driven cravings and help people quit smoking.
How similar studies have performed: Related animal studies manipulating similar brain circuits have changed cue-driven behavior, but translating these findings into proven human treatments has not yet been achieved.
Where this research is happening
New Haven, United States
- Yale University — New Haven, United States (Active)
Researchers
- Principal investigator: Picciotto, Marina R — Yale University
- Study coordinator: Picciotto, Marina R
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.