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Bethan Barrett

@bethanbarrett.bsky.social
59 followers 103 following 4 posts

PhD student researching how repetitive negative thought influences decision-making using online samples, neuroimaging & ultrasound neuromodulation @ BRIC, University of Plymouth

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Reposted by Bethan Barrett
Alex Pike @alexandrapike.bsky.social · 28/07/2026
New paper alert! In this paper we were interested to formally test some of the assumptions made by computational psychiatrists - assumptions about parameter recoverability, reliability and validity. www.cambridge.org/core/journal...
cambridge.org
The recoverability, reliability, and generalizability of reward processing parameters and relation to mental health symptoms | Psychological Medicine | Cambridge Core
The recoverability, reliability, and generalizability of reward processing parameters and relation to mental health symptoms - Volume 56
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Bethan Barrett @bethanbarrett.bsky.social · 20/07/2026
Amazing few days at Yale for #CPConf2026 #CPC2026! Honoured to have received a Travel Award and selected for a Poster Spotlight talk. ✨ Feeling very grateful for the opportunity and inspired by the innovative work being carried out by so many talented researchers in computational psychiatry. 😊
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Shirley Wang @shirleybwang.bsky.social · 17/07/2026
Finally, congratulations to all travel & poster award winners! The best part of #CPC2026 was seeing trainees & fellow early career scientists share their work with such creativity & rigor. Gives me so much hope for the future of this field 🧠📊 /fin (and now off to catch up on 5 days of sleep!)
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Shirley Wang @shirleybwang.bsky.social · 17/07/2026
What a week! #CPC2026 was amazing, and it was such a joy to co-organize & host it here at Yale with @robbrutledge.bsky.social @xiaosigu.bsky.social @yiplab.bsky.social @francesghart.bsky.social & Al Powers & Katie Myerscough (our MVP!) Some highlights... 🧵
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Toby Wise @tobywise.bsky.social · 13/07/2026
On Wednesday, @bethanbarrett.bsky.social will be presenting results from an aversive version of the two step task where we find intriguing links between model-based avoidance and anxiety/depression (Poster B48, and a poster spotlight!) Work with @efouragnan.bsky.social
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Toby Wise @tobywise.bsky.social · 13/07/2026
Excited to be heading to #cpconf in New Haven and looking forward to what looks like a really brilliant programme! We have some exciting new work being presented by our brilliant students and postdocs 👇👇👇
A plane at an airport
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Miriam Klein-Flügge 🧠 @mkflugge.bsky.social · 01/04/2026
🧠 Focused ultrasound changes emotional processing 🔊 In a new study published in Neuron today, we stimulated the human amygdala using transcranial ultrasound stimulation (TUS) and show it plays a causal role in detecting and resolving emotional ambiguity.
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Toby Wise @tobywise.bsky.social · 21/01/2026
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...
sciencedirect.com
Impaired Goal-Directed Planning in Transdiagnostic Compulsivity Is Explained by Uncertainty About Learned Task Structure
Diminished use of goal-directed (model-based) decision making is a hallmark of transdiagnostic compulsivity, promoting an overreliance on inflexible a…
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Richard McElreath 🐈‍⬛ @rmcelreath.bsky.social · 09/12/2025
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...
course schedule as a table. Available at the link in the post.
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Brain Research and Imaging Centre, Plymouth @bricplymouth.bsky.social · 23/12/2025
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!
Cartoon picture of a brain wearing a red Christmas hat.
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Elsa Fouragnan @efouragnan.bsky.social · 28/11/2025
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.
nature.com
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...
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Tim Sandhu @timsandhu.bsky.social · 24/11/2025
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/
timothysandhu.github.io
how to apply for PhD's | Timothy R. Sandhu
a rough guide to PhD apps
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Bethan Barrett @bethanbarrett.bsky.social · 03/11/2025
Please read these two very important letters below in response to a recent case reporting a serious medical event following TUS ⤵️
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Bethan Barrett @bethanbarrett.bsky.social · 07/09/2025
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
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