Bethan Barrett
@bethanbarrett.bsky.social
PhD student researching how repetitive negative thought influences decision-making using online samples, neuroimaging & ultrasound neuromodulation
@ BRIC, University of Plymouth
@ BRIC, University of Plymouth
Reposted by Bethan Barrett
I'm teaching Statistical Rethinking again starting Jan 2026. This time with live lectures, divided into Beginner and Experienced sections. Will be a lot more work for me, but I hope much better for students.
I will record lectures & all will be found at this link: github.com/rmcelreath/s...
I will record lectures & all will be found at this link: github.com/rmcelreath/s...
December 9, 2025 at 1:58 PM
I'm teaching Statistical Rethinking again starting Jan 2026. This time with live lectures, divided into Beginner and Experienced sections. Will be a lot more work for me, but I hope much better for students.
I will record lectures & all will be found at this link: github.com/rmcelreath/s...
I will record lectures & all will be found at this link: github.com/rmcelreath/s...
Reposted by Bethan Barrett
We're wrapping up for the year at BRIC, and what a year it was! After a good rest, we will be ready for more wonderful research in 2026.
Happy Holidays, everyone!
Happy Holidays, everyone!
December 23, 2025 at 10:16 AM
We're wrapping up for the year at BRIC, and what a year it was! After a good rest, we will be ready for more wonderful research in 2026.
Happy Holidays, everyone!
Happy Holidays, everyone!
Reposted by Bethan Barrett
New study out today in Nature Comms: www.nature.com/articles/s41..., in which we set out to test whether ultrasound could influence the reward-related learning computations of the nucleus accumbens, building on decades of work on dopaminergic prediction error and reinforcement learning. And it did.
Non-invasive ultrasonic neuromodulation of the human nucleus accumbens impacts reward sensitivity - Nature Communications
This study shows that non-invasive ultrasound to the human nucleus accumbens can modulate deep brain activity and enhance reward-guided learning, offering a potential alternative to invasive neuromodu...
www.nature.com
November 28, 2025 at 12:26 PM
New study out today in Nature Comms: www.nature.com/articles/s41..., in which we set out to test whether ultrasound could influence the reward-related learning computations of the nucleus accumbens, building on decades of work on dopaminergic prediction error and reinforcement learning. And it did.
Reposted by Bethan Barrett
I updated a blog which I wrote a few years ago about PhD applications. There's a mix of reflections and practical tips which should be useful for anyone thinking about applying for a PhD (at predominantly UK institutions). Please share if it could be helpful! timothysandhu.github.io/blog/phd_blog/
how to apply for PhD's | Timothy R. Sandhu
a rough guide to PhD apps
timothysandhu.github.io
November 24, 2025 at 2:06 PM
I updated a blog which I wrote a few years ago about PhD applications. There's a mix of reflections and practical tips which should be useful for anyone thinking about applying for a PhD (at predominantly UK institutions). Please share if it could be helpful! timothysandhu.github.io/blog/phd_blog/
Please read these two very important letters below in response to a recent case reporting a serious medical event following TUS ⤵️
A brain injury was reported in a trial using ultrasound, framed as low-intensity TUS. Kim Butts Pauly and I reviewed the case and disagreed with how it's presented. Key acoustic data are missing.
Case: doi.org/10.1016/j.br...
Letters: www.elsa-fouragnan.com/blog | web.stanford.edu/~kimbutts/Le...
Case: doi.org/10.1016/j.br...
Letters: www.elsa-fouragnan.com/blog | web.stanford.edu/~kimbutts/Le...
Brain Injury During Focused Ultrasound Neuromodulation for Substance Use Disorder
www.sciencedirect.com
November 3, 2025 at 6:29 PM
Please read these two very important letters below in response to a recent case reporting a serious medical event following TUS ⤵️
So great to share plans for my upcoming online study and broader PhD with brilliant minds at my first conference #BAP2025 and fantastic computational modelling workshop #CSC2025! osf.io/7fqbe
September 7, 2025 at 1:39 PM
So great to share plans for my upcoming online study and broader PhD with brilliant minds at my first conference #BAP2025 and fantastic computational modelling workshop #CSC2025! osf.io/7fqbe