Summary: Researchers have successfully altered human reward learning using non-invasive transcranial ultrasound stimulation directed at a deep brain structure linked to motivation. After brief stimulation, participants learned faster from positive feedback and repeated rewarding choices more consistently.
The effects mirrored key aspects of surgical deep brain stimulation but without implants or incisions. The findings suggest ultrasound could become a safer, personalized tool for reshaping faulty reward circuits in mental health disorders.
Key Facts
Deep Brain Targeting: Ultrasound successfully modulated the nucleus accumbens without surgery.
Faster Reward Learning: Participants showed increased sensitivity to positive outcomes after stimulation.
Therapeutic Potential: The technique may one day aid treatment for addiction, depression, and eating disorders.
Source: University of Plymouth
Professor Fouragnan added: “This study is the most significant I have had the privilege to lead so far. We uncovered a clear link between a specific cognitive process and a deep-brain structure that, until now, was beyond reach without surgery. It marks a turning point for neurotechnology, showing that a non-invasive ultrasound approach can influence behaviour and may one day help restore mental balance.”
https://neurosciencenews.com/neurotech-ultrasound-learning-29992/