Bethan Barrett

Now online in @biologicalpsych.bsky.social CNNI - our paper showing that reliance on habitual responding in transdiagnostic compulsivity may be underpinned by uncertainty about learned environmental structure

📃 www.sciencedirect.com/science/arti...

21.01.2026 15:45 — 👍 19    🔁 7    💬 0    📌 0

course schedule as a table. Available at the link in the post.

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...

09.12.2025 13:58 — 👍 658    🔁 235    💬 12    📌 20

Cartoon picture of a brain wearing a red Christmas hat.

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!

23.12.2025 10:16 — 👍 4    🔁 2    💬 0    📌 0

Congratulations ! 🎉

18.12.2025 21:47 — 👍 0    🔁 0    💬 0    📌 0

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...

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.

28.11.2025 12:26 — 👍 72    🔁 23    💬 6    📌 4

how to apply for PhD's | Timothy R. Sandhu a rough guide to PhD apps

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/

24.11.2025 14:06 — 👍 4    🔁 4    💬 0    📌 0

Please read these two very important letters below in response to a recent case reporting a serious medical event following TUS ⤵️

03.11.2025 18:29 — 👍 0    🔁 0    💬 0    📌 0

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

07.09.2025 13:39 — 👍 19    🔁 2    💬 1    📌 0