Marco K Wittmann reposted
Das selbsternannte "freundliche Gesicht des NS" (Matthias Helferich) spricht heute im Rahmen einer AfD-Veranstaltung in Düsseldorf. Kommt mit zur Gegendemo! duesseldorf-stellt-sich-quer.org/wp-content/u...
Marco K Wittmann
@mkwittmann.bsky.social
Associate Professor @ UCL. Experimental Psychologist. Interested in neural computations underlying social cognition. https://www.wittmann-lab.com
837 followers376 following62 posts
Marco K Wittmann reposted
Das selbsternannte "freundliche Gesicht des NS" (Matthias Helferich) spricht heute im Rahmen einer AfD-Veranstaltung in Düsseldorf. Kommt mit zur Gegendemo! duesseldorf-stellt-sich-quer.org/wp-content/u...
Marco K Wittmann reposted
🚀 PhD opportunity in the Vaghi Lab, starting 2027 @birkbeckpsychology.bsky.social We are looking to support applicants interested in: 🔬 precision neuroimaging 🧠 compulsivity/OCD 💻 computational approaches Available via the ESRC UBEL DTP PhD or MSc + PhD routes 🔗 surl.li/qunzzt Please share! 📢
Marco K Wittmann reposted
What a pleasure to collaborate with @mkwittmann.bsky.social and @yongling.bsky.social to find reduced signatures of "we-ness", along enhanced "they-ness" in young individuals with Borderline personality disorder. Check out the preprint 👇🏻if you are interested
New preprint with @yongling.bsky.social and @anrei.bsky.social on asymmetric social structure representation in participants with Borderline personality disorder.
Marco K Wittmann reposted
✨New PhD Position!✨ Come and work with us on understanding cognition with a mix of cognitive modelling and ultrasound neuromodulation! More info on the lab & position: mic-lab.de/positions/ph... Official job ad: tinyurl.com/miclab-phd 🙏Please RT - deadline is Oct 14 ‼️
New preprint with @yongling.bsky.social and @anrei.bsky.social on asymmetric social structure representation in participants with Borderline personality disorder.
A self without a "we": Individuals with Borderline personality disorder show signatures of disrupted social basis functions https://www.biorxiv.org/content/10.64898/2026.09.21.752665v1
Marco K Wittmann reposted
Autism has long been linked to difficulties with Theory of Mind. But what exactly is driving these differences? And what happens in the brain? In our new preprint, we show that adaptive mentalization might be key. A 🧵 #CogSci #CogNeuro osf.io/preprints/ps...
Marco K Wittmann reposted
Out now @natcomms.nature.com. how do deadlines shape effort processing? We show that deadlines cause us to seek high effort rather than avoid it. Why? Becease effort makes progress towards completing goals, making it valuable, a process coordinated by fronto-striatal computations.
Under pressure? It may not be bad. We think of pressure when there is too much of it, but in the right doses it is what makes us reach our goals on time. That's the idea @brainapps.bsky.social & I developed in this paper finally in press at @natcomms.nature.com nature.com/articles/s41467-026-75987-6
Marco K Wittmann reposted
Marco K Wittmann reposted
Super Happy to be at @s4sn.bsky.social annual meeting in Montreal! Kick off by talks by Kay Tye, Teruhiro Okuyama and Dean Mobbs
Beyond excited to be flying to Montreal today for @s4sn.bsky.social www.s4sn.org/s4sn2026 to give this year’s Early Career Award lecture for human research! I will speak about my lab's work on abstract representations. Let me know if you're around and would like to meet up! @s4sn.bsky.social
Marco K Wittmann reposted
Nice exploration by @dileeplearning.bsky.social lab of past data and models from my lab on predictive maps: Shortest-Path Planning on Learned Latent-State Maps Better Fits Biological Navigation Data Than Tabular Successor Representations openreview.net/pdf?id=MDuSJ...
Marco K Wittmann reposted
Are you interested in metacognition/ individual differences/ Bayesian modeling/ psychometrics? I'm thrilled to present our poster at #CogSci2026 🇧🇷 next week! Come check it out and chat! 📍Poster number P1-E-41 📅 2:45 pm, July 23 👥 @jasondasilvac.bsky.social @smfleming.bsky.social
Marco K Wittmann reposted
New perspective paper from our lab: “The hippocampus as a generative model” out now !! royalsocietypublishing.org/rstb/article... The traditional view of the hippocampus is that it creates a cognitive map. Here we extend this view to conceptualise the hippocampus as a “generative model”.
Marco K Wittmann reposted
The hippocampus sits at the interface of perception & memory, allowing us to link past, present, & future through its role in generating predictions. Excited to share this theme issue in @royalsociety.org's Philosophical Transactions B, co-edited with @barense.bsky.social & @mariamaly.bsky.social
Marco K Wittmann reposted
Finally out in Psychological Review (psycnet.apa.org/doi/10.1037/...), our update to Signal Detection Theory. We show that contrary to the prevailing Gaussian assumption, evidence distributions in recognition memory are likely minimum extreme Gumbel!
Honey, we fixed Signal Detection Theory (SDT)! In this preprint, Constantin Meyer-Grant, David Kellen, Sam Harding, and I critically evaluate the (unequal-variance) Gaussian SDT model in recognition memory and pursue the Gumbel-min model as a principled alternative: doi.org/10.31234/osf... 🧵
Marco K Wittmann reposted
happy to announce the official release of my first R package on CRAN! 🎉 building on the Hmetad toolbox by @smfleming.bsky.social, the hmetad package allows users to fit the meta-d' model of confidence ratings using a familiar brms/lme4-style formula syntax
Marco K Wittmann reposted
(1/6) My first first-author paper is now out in @nconsc.bsky.social! Part of my PhD work with @mamassian.bsky.social at @lsp-ens.bsky.social. We looked at how confidence behaves during a perceptual learning task with no feedback. academic.oup.com/nc/article/2...
Marco K Wittmann reposted
You love teaching psychology and London? Then we have the perfect position for you: Associate Professor (Teaching), Experimental Psychology, @uclpals.bsky.social. Your role: Develop a flexible portfolio of psychology undergraduate modules for Non-Psychology students www.jobs.ac.uk/job/DSB720/a...
Marco K Wittmann reposted
The typeset version of our paper (w/ Sam, @jpheffne.bsky.social & @orielf.bsky.social ) in @commspsychol.nature.com is now up: www.nature.com/articles/s44.... We show that affective valence tracks value learning independent of canonical RPEs, in both social and non-social (risky) decision-making. 🧵
Marco K Wittmann reposted
How do brains plan actions towards goals? To get at this question we studied mice navigating complex mazes as goals changed on every trial 🧵 Work with @thomasakam.bsky.social @behrenstimb.bsky.social @kristorpjensen.bsky.social now on BioRxiv: www.biorxiv.org/content/10.6...
Marco K Wittmann reposted
Marco K Wittmann reposted
Marco K Wittmann reposted
After learning two equally structured graphs, an abstract relational map of their shared structure emerges in mPFC — but only after a few days 🧠 Huge thanks to all collaborators, especially @alonbaram.bsky.social for leading this and @behrenstimb.bsky.social for making so much of it possible.
How does the human brain extract abstract structure from experience? We show that sensory-independent relational representations emerge in mPFC over several days. Work with @mgarvert.bsky.social and @behrenstimb.bsky.social now out in @currentbiology.bsky.social: www.cell.com/current-biol...
Marco K Wittmann reposted
How does the human brain extract abstract structure from experience? We show that sensory-independent relational representations emerge in mPFC over several days. Work with @mgarvert.bsky.social and @behrenstimb.bsky.social now out in @currentbiology.bsky.social: www.cell.com/current-biol...
Marco K Wittmann reposted
check out the inaugural cohort of @neuromatch.bsky.social AI Sentience Scholars! this is a seriously impressive bunch!
🎉 Introducing the 2026 Neuromatch AI Sentience Scholars cohort! Learn more about them, the projects they will be working on, and their mentors! ⬇️ neuromatch.io/ai-sentience... We're just kicking off this 6 month program and already incredibly proud! #AISentience #AIResearch #ConsciousnessStudies
Marco K Wittmann reposted
Our new paper on speciesim & eating behaviour: children highly value animals & condemn meat eating regardless of whether they do eat meat or not. In early adolescence eating & moral judgements start to align: bpspsychub.onlinelibrary.wiley.com/doi/10.1111/... #socialpsyc #PsychSciSky #DevPsychSky
Marco K Wittmann reposted
Marco K Wittmann reposted
😀Excited to share the new preprint!!!🥳 We show preserved self–other integration in social decision-making among individuals with elevated autistic traits (N = 1,621), highlighting the importance of large samples to validate null effects. www.biorxiv.org/content/10.6...
Marco K Wittmann reposted
🧠 Warum fliehen wir vor einer Bedrohung und stellen uns einer anderen? An der #LMU untersucht Neurowissenschaftlerin @annaschroeder.bsky.social, wie das Gehirn Emotionen oder Bedürfnisse mit äußeren Reizen verknüpft und in Verhalten übersetzt. Im Fokus: die Zona incerta 🔬 Was das ist? Jetzt lesen!
New preprint from the lab! Here, @yongling.bsky.social shows that people prioritise self / ingroup-related information to guide their decisions - irrespective of their autistic traits.
😀Excited to share the new preprint!!!🥳 We show preserved self–other integration in social decision-making among individuals with elevated autistic traits (N = 1,621), highlighting the importance of large samples to validate null effects. www.biorxiv.org/content/10.6...
This follows-up on our paper on how basis functions guide social decision-making, now investigating individual differences in social basis function use. While having autistic traits does not change these computations, being young does: see work with @simyciri.bsky.social: osf.io/preprints/ps...
Original paradigm and approach first published here: www.nature.com/articles/s41...
Marco K Wittmann reposted
📢PhD job alert! A exciting PhD project that involves using MEG and biophysical modelling to try to predict effects of a glutamatergic treatment for psychosis... plus you can develop your own side project. Join our great team! www.ucl.ac.uk/work-at-ucl/...
Marco K Wittmann reposted
Very excited to share our first effort-learning paper in @plosbiology.org! Huge thanks to my wonderful co-authors @Jan Grohn, @thepsychologist.bsky.social and to my co-senior authors @mkflugge.bsky.social and @lilweb.bsky.social, for all their effort on this fun project. doi.org/10.1371/jour...
Marco K Wittmann reposted
Our paper revealing the evolutionary origins of metacognition-driven human intelligence in the macaque brain is just out in Nature Human Behaviour rdcu.be/fji6p
Marco K Wittmann reposted
🎉New positions!🎉 Postdoc and Research technician openings in our lab @yale for computational psychiatry research. Technician position a great stepping stone to grad school. More info: rutledgelab.org/positions Work w/big data from our smartphone apps and large clinical samples happinessquest.app
Marco K Wittmann reposted
📣 New preprint 📣 "Neural Dynamics of Belief and Value Computations Guiding Strategic Social Decisions" We use EEG and computational modeling (combining learning + DDM) to explain participants' choices, RT, and neural signals in a strategic game. www.biorxiv.org/content/10.6...
Marco K Wittmann reposted
New preprint led by @mateuspsi.bsky.social and @andrecravo.bsky.social dissociating absolute from relative time estimation in the brain. Thanks for having me along! Nice to see this out even though it's also a reminder of how much we miss Mark...
New preprint www.biorxiv.org/cgi/content/... How does the brain separate "how long was that?" from "was it longer than expected?" We designed a task in which physical duration and categorical judgment vary independently, and used EEG to separate these signals. #neuroskyence #psychscisky 1/8
Marco K Wittmann reposted
New paper just out in @commspsychol.nature.com: Beliefs about accuracy shape confidence attributions to humans and artificial agents - led by the brilliant @ccolomb.bsky.social Paper: www.nature.com/articles/s44... 🧠🧪
Marco K Wittmann reposted
We are looking for two Research Assistants to conduct experiments and data analyses investigating the neural mechanisms of strategic and social decision-making using head-fixed (1) and freely-moving (1) behavioural paradigms in mice. www.ucl.ac.uk/work-at-ucl/...
Marco K Wittmann reposted
🚨🚨JOB ALERT🚨🚨 I'm hiring a cogsci/philosophy/compneuro postdoc at @ucl.ac.uk @uclbrainscience.bsky.social @uclpals.bsky.social! www.jobs.ac.uk/job/DRH486/p... Come to London & work on frameworks for "testing" for consciousness using Bayesian belief updating & latent variable modeling. Pls share!
Marco K Wittmann reposted
Now out in PNAS with @jaeyoungson.bsky.social, Alice Xia, @apaxon.bsky.social & @orielf.bsky.social. Medial temporal lobe encodes predictive representations of people's real-world social networks which afford them key advantages in social navigation. www.pnas.org/doi/10.1073/... 🧵
Marco K Wittmann reposted
Replying to @annaschroeder.bsky.social
Here's the team 🤗 (www.annaschroederlab.com/team)! Thanks for the support @erc.europa.eu, @bernsteinneuro.bsky.social. Group Photo: Carolin Bleese / LMU Faculty of Biology.
Transcranial ultrasound stimulation can reach deep brain regions such as the amygdala, modulate ongoing task-related activity, and bias emotional responses. Nice to see this impressive brainstim-MRI study from @mkflugge.bsky.social lab come together and glad to have been involved.
🧠 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.
Marco K Wittmann reposted
Symposium submissions are due tomorrow, March 31, 2026!
Symposium Proposal Deadline Extended! 2026 Annual Meeting of the Society for Social Neuroscience (S4SN 2026) will take place in Montréal, Canada, August 23–26, 2026. 🧠 The deadline for symposium proposals has been extended to Tuesday, March 31. Learn more: s4sn.org/s4sn2026
Marco K Wittmann reposted
Out now in Cognitive Psychology, paper spearheaded by @davidyoung-psych.bsky.social showing that questions like "Does a torch cost more or less than a laptop?" can generate mutual anchoring effects: www.sciencedirect.com/science/arti...
Marco K Wittmann reposted
Please repost! We have one postdoc and one PhD student position open in my lab (starting from Sept 2026), neuroscience of decision making and learning. Join us @hhu.de in gorgeous Düsseldorf! For details please look here: www.psychologie.hhu.de/en/research-... @biodgps-dgpa.bsky.social
Marco K Wittmann reposted
Huge congratulations to Jes (not on Bsky) for her paper in @plos.org Computational Biology! A really elegant modelling study on how the brain discovers hidden structure and uses it to guide behaviour. @uclnpp.bsky.social @ucllifesciences.bsky.social 🧪 📈 🧠 journals.plos.org/ploscompbiol...
Marco K Wittmann reposted
Poster tonight at #cosyne26 (1-079)! @wanqingjiang.bsky.social & @noehamou.bsky.social show that mice learn hidden community structure in a 15-odour graph even when transition statistics are flat. Fun collaboration with @saxelab.bsky.social that started with East London coffees ☕!