Brain-wide representations of prior information in mouse decision-making www.nature.com/articles/s41...

New paper our in @pnas.org, lead by @isabellehoxha.bsky.social with Léo Sperber. We use evolutionary simulation to assess and compare the adaptive value of positivity bias and gradual perseveration in reinforcement learning. Follow the thread below (and Isabelle!) for more details!

I’m glad to have played a small part in this project, where the brilliant Deng Pan combined modelling, fMRI and ultrasound stimulation to demonstrate the causal role of the hippocampus in learning based on inference. See Deng's thread below

We are super excited about the first human transcranial ultrasound study from our lab which is now on BiorXiv, showing the amygdala‘s role in processing ambiguous emotions and showing TUS changed resting-state connectivity and metabolite concentrations (GABA) in the amygdala - a huge team effort! 🥳🙏🏼

New paper with @nathanieldaw.bsky.social in Nature Communications: an RL model that builds a successor map compositionally. The new model plans as well as the best models, and it links components of the map used for planning to neural codes in the medial entorhinal cortex. rdcu.be/eAofi

📢 Job announcement: Two (!) 3-year postdoc jobs in our lab at UCL 📢 🧠💫🔊 We are looking for postdocs interested in the abstract mechanisms underlying social cognition. Modelling, fMRI and non-invasive ultrasound, a new deep-brain stimulation method. Please RT www.ucl.ac.uk/work-at-ucl/...

Individual differences in decision-making shape how mesolimbic dopamine regulates choice confidence and change-of-mind www.nature.com/articles/s41...

This is cool!

🚨 We’re hiring! The Computational Cognitive Neuroscience Lab at Virginia Tech is looking for a postdoc to join our team studying the neural + computational mechanisms of structure learning and flexible cognition: ccnvt.github.io#positions

We have a Research Assistant position available in Rushworth Lab to help us with projects involving fMRI, TMS, and TUS. Find out more here my.corehr.com/pls/uoxrecru...

new paper from a collaborative endeavor! (@co0p3r.bsky.social) we find & replicate food-reward biases in a reinforcement learning task (where food stim are incidental) people with eating disorder symptoms show a low-calorie food bias while those without show a high-calorie food bias... (1/3)

Completing the mouse, ANN, human trilogy of projects, here are two openings to study cognitive map deficits in human psychosis patients with the inimitable @mattnour.bsky.social Using functional neuroimaging and planning tasks. If you’re keen to join us then apply!

New in Nature MentalHealth! with Vrizzi, Najar, Lemogne, and @mael-lebreton.bsky.social We tested whether behavioural and RL-based model parameters are test-retest reliable and predict mental health traits. The result? Not really. A cautionary tale for comp. psychiatry doi.org/10.1038/s442...

🚨 New preprint alert! 🚨 Thrilled to share new research on teaching! Work supervised by @cocoscilab.bsky.social, @yaelniv.bsky.social, and @markkho.bsky.social. This project asks: When do people teach by mentalizing vs with heuristics? 1/3 osf.io/preprints/os...

Humans learn generalizable representations through efficient coding www.nature.com/articles/s41...

Hippocampal output suppresses orbitofrontal cortex schema cell formation www.nature.com/articles/s41...

🚨 New study alert! 🚨 Ever wondered if rats and humans learn in the same way? 🐭🧑‍🔬 We tested this — and the answer is yes, at least when it comes to how we value rewards in context. (with @shaunaparkes.bsky.social Lachlan Ferguson, Magdalena Soukupova) 🧵Thread 👇 1/ www.biorxiv.org/content/10.1...

join us at @oxexppsy.bsky.social | @ox.ac.uk!

Blimey! Machine-unique chess knowledge from an AI system (AlphaZero) can be transferred to four current or former world chess champions. www.pnas.org/doi/10.1073/...

Our new paper with Max Taylor-Davies introduces a resource-rational model of Theory of Mind. The model can explain many of the successes and failures of mindreading in human adults and children, and non-human primates. 🧵

getting this paper published was a bit painful but I am proud of it: www.nature.com/articles/s41.... We use deep RL to find mechanisms that help (real) people sustain the commons. Well done to Raphael Koster and Miruna Pislar (not on BlueSky). non-paywalled version on arxiv.

Re-posting is appreciated: We have a fully funded PhD position in CMC lab @cmc-lab.bsky.social (at @tudresden_de). You can use forms.gle/qiAv5NZ871kv... to send your application and find more information. Deadline is April 30. Find more about CMC lab: cmclab.org and email me if you have questions.

🚨 New paper 🚨 Out in @commspsychol.bsky.social: "Manipulating attention facilitates cooperation" with Claire Lugrin and @ccruff.bsky.social We use gaze data and display manipulations in one-shot Prisoner's Dilemma games and find that these manipulations can drive choices through attention 👇

New paper from our lab now in @nature.com . We show that our brains use basis functions or "building blocks" to navigate social interactions. Rather than tracking every individual separately, social information is compressed into patterns that can be flexibly combined. www.nature.com/articles/s41...

Chris Summerfield's previous book (Natural General Intelligence) was a spectacular read! Looking forward to reading his new book: These Strange New Minds.

Our new paper on anterior prefrontal role of 'social metacognition' (projection of one's own introspection to imagine others' thought) is just out at Nature Communications rdcu.be/d6Tcg

Schemas, reinforcement learning and the medial prefrontal cortex www.nature.com/articles/s41...

Context-dependent decision-making in the primate hippocampal–prefrontal circuit www.nature.com/articles/s41...

Test-retest paper out! This one has been some time in the works (thanks to other co-authors for bearing with me as I moved institutions and then went on maternity leave). With @olijrobinson.bsky.social, Katrina Tan, Hoda Tromblee and Michelle Wing. doi.org/10.5334/cpsy...

Happy to share my second paper with Peter Dayan on our decision-theoretic approach to perceptual multistability (see the tweeprint of the first paper here x.com/neuroprincip...). Paper: A decision-theoretic model of multistability biorxiv.org/content/10.1...

What do you get if you ask a recurrent network (like the PFC or Entorhinal cortex) to generalise a transition structure? Turns out different things depending on how intimate they are with an external memory (like Hippocampus). Elegant theory led by @jcrwhittington.bsky.social

🚨New preprint alert!🚨 Achieving Scale-Invariant Reinforcement Learning Performance with Reward Range Normalization. Where we show that things we discover in psychology can be useful for machine learning. By the amazing @maevalhotellier.bsky.social and Jeremy Perez. doi.org/10.31234/osf...

🚨Join our team! We’re hiring a PhD student in Cognitive & Clinical Neuroscience 🧠 🎓 at @uni_wue & @UKW_Wuerzburg! Explore mechanisms of decision-making in healthy people & Parkinson’s using new deep brain stimulation methods. German & English required. Apply by 20 Dec! 🌟🎄 Details: shorturl.at/IcNa0