- Researchers study a specific brain circuit linked to relapse.
- The circuit connects two brain areas involved in motivation.
- The team used an animal model to mimic people.
- Reducing activity in the circuit lowered drug-seeking behavior.
- One method used a light fiber inside the brain.
- Another method used a designer receptor and a drug.
- Both approaches cut heroin-seeking in the model.
- This research may help reduce relapse in people.
Difficult words
- relapse — return to drug use after stopping
- circuit — a path of connected brain parts
- motivation — reason to do something or try
- model — an animal used to study human problemsanimal model
- reduce — make something smaller or less in amountReducing
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Do you think this research can help people?
- Have you seen a brain picture or model?
- Do you think animal studies can help people?
Related articles
Vitamin C may protect reproductive health from potassium perchlorate
A study using Japanese rice fish (medaka) found that potassium perchlorate damaged testes and reduced fertility. Fish given vitamin C alongside the chemical showed better fertility and less testicular harm, suggesting vitamin C may help protect reproductive health.
New inhaled nanoparticle treatment for tuberculosis
Researchers at the University at Buffalo developed inhalable nanoparticles that carry rifampin to lung immune cells. In mice the treatment kept drug levels in the lung much longer and may allow weekly dosing with fewer side effects.
Connie Nshemereirwe: linking science, policy and education in Africa
Connie Nshemereirwe is an educational measurement specialist and former engineer who promotes Africa-led research, better science communication and stronger ties among scientists in the global South. She also directs the Africa Science Leadership Program.
