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Sepehr Razavi

@srazavi.bsky.social
269 followers 500 following 125 posts

Doctoral student, Social Computation and Representation Lab - www.socrlab.net/people

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Reposted by Sepehr Razavi
Parnian Rafei @parnianrafei.bsky.social · 07/08/2026
🚨 My new paper is out in CABN! 🚨@psychonomicsociety.bsky.social Do human 'habit' tasks measure the same thing? In this study, we compared the most commonly used paradigms, "Outcome Devaluation" & "Response Remapping", under matched training + time pressure 🧠⌛ link.springer.com/article/10.3...
link.springer.com
Does time pressure reveal habits? Divergent results from outcome devaluation and response remapping paradigms - Cognitive, Affective, & Behavioral Neuroscience
Habits are central to daily life but remain difficult to study in the lab. Outcome Devaluation is often considered a “gold standard” paradigm for habit measurement; yet human studies have produced mix...
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Sepehr Razavi @srazavi.bsky.social · 09/09/2026
The Social Computation and Representation Lab talk series is back tomorrow! And no better way to start the new academic year than by following @setayeshradkani.bsky.social 's talk as she weaves together two complementary strands of her investigations into social cognition.
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Sepehr Razavi @srazavi.bsky.social · 20/08/2026
Everything about this is heartbreaking beyond measure—I wish I/we had done more to prevent his death
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Hayley Dorfman @hayleydorfman.bsky.social · 04/08/2026
If you’re at #CCN2026 come stop by Sep’s poster at 2pm today! 🌵🤖👥
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Sepehr Razavi @srazavi.bsky.social · 04/08/2026
If you’re at CCN swing by at 2pm to hear about a social agency project I’ve been working on under the supervision of @joebarnby.com & @hayleydorfman.bsky.social (and Reuth Mirsky)
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Sepehr Razavi @srazavi.bsky.social · 02/08/2026
lucky and excited to be at this great pre-CCN workshop :) come to my poster on social agency on Tuesday
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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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Sepehr Razavi @srazavi.bsky.social · 28/07/2026
Incredible
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Reposted by Sepehr Razavi
PredictivePapers @predictivepapers.bsky.social · 28/07/2026
An active inference account of sneezing directly into someone's face doi.org/10.3389/fnhum.2019.146347
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Joe Barnby @joebarnby.com · 14/07/2026
If you’re at #CPC2026 come and visit Seps poster ! Sep is leading work testing how social environment complexity interacts during learning to form maladaptive beliefs using connectionist models
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Sepehr Razavi @srazavi.bsky.social · 14/07/2026
Mood a bit dampened by a somewhat humiliating ‘random’ check in the process of entering the US but still very excited to present some of the work we’ve been doing at the Social Computation and Representation lab, starting at Computational Psychiatry in New Haven tomorrow!
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Charley Wu @thecharleywu.bsky.social · 20/06/2026
Look how far we've come in just a few years! We're fast as well! It turns out, recruiting reviewers is much easier when they're not being used as free labor for massively profitable publishers Support free-to-publish and Open Access science by submitting to Open Mind today! direct.mit.edu/opmi
direct.mit.edu
Open Mind | MIT Press
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Sepehr Razavi @srazavi.bsky.social · 10/06/2026
Reminder, this is happening tomorrow!
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Shervin Safavi @neuroprinciplist.bsky.social · 09/06/2026
1/11 Happy to share our TICS paper on using the flexibility of one of the most basic cognitive functions, perception, to understand one of the most complex cognitive dysfunctions, psychiatric conditions (also my first formal work in computational psychiatry 🎉) 📄: www.cell.com/trends/cogni... 🧵 : 👇
cell.com
Perceptual multistability: a multifaceted window into brain dysfunctions
Perceptual multistability, observed across species and sensory modalities, offers valuable insights into numerous cognitive functions and dysfunctions. For instance, differences in temporal dynamics a...
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Hayley Dorfman @hayleydorfman.bsky.social · 08/06/2026
🌵🏜️🌵 Out now in @cognitionjournal.bsky.social with @rbhui.bsky.social! If your advisor sends you an unclear email, do you interpret it as good or bad? 😏😱 In a new paper, we show how people make inferences about this type of ambiguous feedback during learning. www.sciencedirect.com/science/arti...
sciencedirect.com
Ambiguity and confirmatory reward learning
We tend to interpret feedback in ways that confirm our pre-existing beliefs. Such confirmatory tendencies are often viewed as cognitive flaws, but mig…
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Reposted by Sepehr Razavi
Ali Mahmoodi @alimahmoodi.bsky.social · 04/06/2026
Looking forward to it!
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Sepehr Razavi @srazavi.bsky.social · 03/06/2026
Coming up next week at the SoCR lab talk series is @alimahmoodi.bsky.social, who will be discussing his recent thought-provoking perspective, which advocates for a computational view of neural mechanisms of social cognition (contra an anatomical one).
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Hayley Dorfman @hayleydorfman.bsky.social · 27/05/2026
Join us tomorrow afternoon at #APS2026BCN! @psychscience.bsky.social @ninarouhani.bsky.social @camillephaneuf.bsky.social @katieinsel.bsky.social
APS 2026 symposium poster on Computational insights into how motivational and socio-emotional factors shape decision-making
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Prof Nichola Raihani @nicholaraihani.bsky.social · 08/05/2026
Sneak peek at the US cover for THE THINKING ANIMAL, coming Jan '27. Looking forward to sharing more - soon! @stmartinspress.bsky.social @zcosini.bsky.social
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Sepehr Razavi @srazavi.bsky.social · 02/04/2026
Reminder that this is happening later today 🙂
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Sepehr Razavi @srazavi.bsky.social · 31/03/2026
This Thursday, we’re delighted to welcome @carocharp.bsky.social, PI of the Social Learning and Decisions Lab at the University of Maryland. She will be delivering what promises to be an insightful talk: 'Seeking advice and seeking feedback: cognitive mechanisms and relevance for psychopathology.'
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Joe Barnby @joebarnby.com · 16/03/2026
What connects difficulties in social cognition, self-awareness, and abstract reasoning in those with Corpus Callosum Dysgenesis (CCD)? Here, across three experiments, we find that the corpus callosum is integral to metacognitive efficiency - www.biorxiv.org/content/10.6...
Gemini said
This schematic outlines three experiments (Online, Lab, and VR) comparing individuals with Cerebral Cavernous Malformations (CCD) to Neurotypical (NT) controls using Random Dot Kinematograms (RDK).

Panel A: Study Overview
Experiment 1 (Online): 10 CCD vs. 85 NT participants using a computer mouse.

Experiment 2 (Lab): 11 CCD vs. 7 NT participants using a button box.

Experiment 3 (VR): 10 CCD vs. 13 NT participants using a VR headset.

Brain Icon: A blue line divides the hemispheres with a crossed-out arrow, suggesting a focus on disrupted interhemispheric communication.

Panel B: Classic RDK (Exp 1 & 2)
A trial sequence on a grey background:

Fixation (1600ms): A central cross.

Motion (1500ms): A circular field of moving dots (red, blue, and white).

Decision (Unlimited): Selection of "L" or "R" buttons.

Confidence (Unlimited): A slider ranging from "Decrease" to "Increase" to rate certainty.

Panel C: VR RDK (Exp 3)
A faster trial sequence used in the VR environment:

Fixation: Until central fixation is achieved.

Motion (180ms): Dots appear within a narrow vertical rectangle.

Decision (Unlimited): A prompt shows blue/orange bars for direction selection.

Panel D: Visual Presentation (Exp 3)
Diagrams showing how stimuli are mapped from the eyes to the brain hemispheres (L and R):

Binocular: Stimuli presented to both eyes, traveling to both hemispheres.

Lateralised: A 3° shift from center presented to one eye.

Monocular: Stimuli presented to one eye, directed specifically toward the right or left hemifield to isolate hemispheric processing.
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Sam Gershman @gershbrain.bsky.social · 14/03/2026
I think Fodor & Pylyshyn's 1988 paper is possibly the most mischaracterized paper in the history of cognitive science. It's often cited as arguing that neural networks cannot achieve systematicity, compositionality, and productivity. But that's not what they actually argue...
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Sepehr Razavi @srazavi.bsky.social · 11/03/2026
A reminder that this is happening tomorrow!
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Reposted by Sepehr Razavi
Georgia Turner @georgiaturner.bsky.social · 24/02/2026
🚨New pre-print🚨 osf.io/preprints/ps... What if the relationship between smartphone use and mental health depends not just on specific harmful or beneficial activities, but also on how users transition between activities?
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Sepehr Razavi @srazavi.bsky.social · 06/03/2026
Very happy to announce next week's SoCR lab guest, Andreas Hula, who will be talking about the uses and misuses of I-POMDPs in model-building human social decision-making 🧵
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Sepehr Razavi @srazavi.bsky.social · 18/02/2026
This is happening tomorrow!
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Marco K Wittmann @mkwittmann.bsky.social · 16/02/2026
Very much looking forward to this talk and interesting chats!
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Sepehr Razavi @srazavi.bsky.social · 13/02/2026
Apparently Ramsey invented polymarket…. (in Resnik _Choices: An Introduction to Decision Theory_)
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Sepehr Razavi @srazavi.bsky.social · 09/02/2026
It's a pleasure for me to announce our next Social Computation and Representation Lab invited speaker @mkwittmann.bsky.social for a talk on dimensionality reduction and basis functions in social cognition
Talk Poster, Prof. Marco Wittmann, 19/02/2026 @ 9am GMT
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Georgia Turner @georgiaturner.bsky.social · 12/01/2026
This weekend, I'm going on a sponsored walk to help raise money for my friend's younger brother's cancer treatment. If able, I'd really appreciate if you could share or sponsor me here: sites.google.com/view/alex-wa...
sites.google.com
Event
On 17th January 2026, we will be going on a sponsored 10km walk to raise money to help fund Alex's cancer treatment. To sponsor us, please donate here: https://www.justgiving.com/page/alex-warwick-20...
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Reposted by Sepehr Razavi
Joe Barnby @joebarnby.com · 18/12/2025
New job alert 💫 We’re hiring a 3-year postdoc for the NEPTUNE project to study the causal mechanisms of paranoia and social learning. Work with us on experimental psychopharmacology (THC), social cognition, and psychosis 🧑‍🔬 Apply here: lnkd.in/gQqnNvjR](my.corehr.com/pls/kclrecru...) Please RT :)
NEPTUNE project logo with affiliations & funders
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Joe Barnby @joebarnby.com · 02/12/2025
Curious why we sometimes see minds where there are none? 🧠 Join us to uncover the foundations of attributed agency. Fully funded PhD for next year as part of DRIVE-Health, working with me, Adam Hampshire & @stefansarkadi.bsky.social Deadline: 12/1/26 Reach out for an informal chat!
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Sepehr Razavi @srazavi.bsky.social · 12/11/2025
Reminder that this is happening tomorrow! Looking forward to seeing some of you there :)
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Sepehr Razavi @srazavi.bsky.social · 05/11/2025
I am pleased to announce that @davidschultner.bsky.social will be our next guest as part of the SoCR Lab's Invited Talk Series. Dr. Schultner will present recent work that offers evidence for a parsimonious and mechanistic explanation of human social learning strategies via reward learning!
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Vaughan Bell @vaughanbell.bsky.social · 05/11/2025
New from us, led by the fantastic @elisavetpappa.bsky.social: Who Are People with Psychosis Delusional about? A Study of Social Agents in the Phenomenology of Delusions karger.com/psp/article/...
karger.com
Who Are People with Psychosis Delusional about? A Study of Social Agents in the Phenomenology of Delusions
Abstract. Introduction: Delusions frequently involve strong beliefs about, or interactions with, illusory social agents. Although such agents have been systematically described in hallucinations, few ...
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Olivia Guest · Ολίβια Γκεστ @olivia.science · 17/10/2025
Proudly published with @andreaeyleen.bsky.social: A metatheory of classical and modern connectionism. doi.org/10.1037/rev0... We touch on what has been up with connectionism as a framework for computational modelling — & for everything it seems these days with AI and LLMs — pre-2010 vs post. 1/n
article cover page
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Olivia Guest · Ολίβια Γκεστ @olivia.science · 06/09/2025
Finally! 🤩 Our position piece: Against the Uncritical Adoption of 'AI' Technologies in Academia: doi.org/10.5281/zeno... We unpick the tech industry’s marketing, hype, & harm; and we argue for safeguarding higher education, critical thinking, expertise, academic freedom, & scientific integrity. 1/n
Abstract: Under the banner of progress, products have been uncritically adopted or
even imposed on users — in past centuries with tobacco and combustion engines, and in
the 21st with social media. For these collective blunders, we now regret our involvement or
apathy as scientists, and society struggles to put the genie back in the bottle. Currently, we
are similarly entangled with artificial intelligence (AI) technology. For example, software updates are rolled out seamlessly and non-consensually, Microsoft Office is bundled with chatbots, and we, our students, and our employers have had no say, as it is not
considered a valid position to reject AI technologies in our teaching and research. This
is why in June 2025, we co-authored an Open Letter calling on our employers to reverse
and rethink their stance on uncritically adopting AI technologies. In this position piece,
we expound on why universities must take their role seriously toa) counter the technology
industry’s marketing, hype, and harm; and to b) safeguard higher education, critical
thinking, expertise, academic freedom, and scientific integrity. We include pointers to
relevant work to further inform our colleagues.Figure 1. A cartoon set theoretic view on various terms (see Table 1) used when discussing the superset AI
(black outline, hatched background): LLMs are in orange; ANNs are in magenta; generative models are
in blue; and finally, chatbots are in green. Where these intersect, the colours reflect that, e.g. generative adversarial network (GAN) and Boltzmann machine (BM) models are in the purple subset because they are
both generative and ANNs. In the case of proprietary closed source models, e.g. OpenAI’s ChatGPT and
Apple’s Siri, we cannot verify their implementation and so academics can only make educated guesses (cf.
Dingemanse 2025). Undefined terms used above: BERT (Devlin et al. 2019); AlexNet (Krizhevsky et al.
2017); A.L.I.C.E. (Wallace 2009); ELIZA (Weizenbaum 1966); Jabberwacky (Twist 2003); linear discriminant analysis (LDA); quadratic discriminant analysis (QDA).Table 1. Below some of the typical terminological disarray is untangled. Importantly, none of these terms
are orthogonal nor do they exclusively pick out the types of products we may wish to critique or proscribe.Protecting the Ecosystem of Human Knowledge: Five Principles
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Sepehr Razavi @srazavi.bsky.social · 07/10/2025
Confederate flag in plain sight in affluent Britain…. 2025!
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Sepehr Razavi @srazavi.bsky.social · 01/10/2025
What a fantastic opportunity, consider applying!
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Prof Nichola Raihani @nicholaraihani.bsky.social · 22/09/2025
This is a complete dereliction of responsibility from all involved. www.theguardian.com/australia-ne...
theguardian.com
Environment watchdog buried report on lead in children’s blood to placate mining companies, emails show
Documents tabled in NSW parliament show state agency took four years to publish report and told miners it would be put online ‘quietly’ but EPA says it was released to community earlier
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Tomer Ullman @tomerullman.bsky.social · 18/09/2025
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Sepehr Razavi @srazavi.bsky.social · 18/09/2025
This is happening right now!
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Sepehr Razavi @srazavi.bsky.social · 16/09/2025
This is happening in two days! Cannot wait for this talk, please consider joining us
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Sepehr Razavi @srazavi.bsky.social · 11/09/2025
Successful British acculturation is seeing an Adrian Chiles headline and thinking « I see where he’s coming from »
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Sepehr Razavi @srazavi.bsky.social · 11/09/2025
Next week, we have the distinct pleasure of (e-)hosting the fantastic @hayleydorfman.bsky.social at the SoCR Lab's Invited Talk Series. Dr Dorfman will presenting some of her recent work on agency-modulated reinforcement learning 🧵👇
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Rob Sica @robsica.bsky.social · 05/09/2025
"Assuming that functional specialisation necessarily implies an ‘encapsulated module’ is a widely recognised error even in evolutionary accounts."
philpapers.org
Sepehr Razavi, Michael Moutoussis, Peter Dayan, Nichola Raihani, Vaughan Bell & Joseph Barnby, Pseudo-approaches lead to pseudo-explanations: reply to Corlett et al. - PhilPapers
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Sepehr Razavi @srazavi.bsky.social · 05/09/2025
What a brilliant group of people to work with! Looking forward to expanding some of the crucial ideas only touched upon here. Feel free to share your thoughts, insights, etc.
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Joe Barnby @joebarnby.com · 05/09/2025
📖 Our letter of reply to 'pseudosocial' cognition is now out in @cp-trendscognsci.bsky.social www.sciencedirect.com/science/arti... Led by the talented @srazavi.bsky.social + written with @vaughanbell.bsky.social, Peter Dayan, @nicholaraihani.bsky.social, Michael Moutoussis #NeuroPsychSky
sciencedirect.com
Pseudo-approaches lead to pseudo-explanations: reply to Corlett et al.
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Joe Barnby @joebarnby.com · 03/09/2025
🧠 We're hiring a computational postdoc! 3+ years with me & @mitulamehta.bsky.social on @wellcometrust.bsky.social funded social cognition/paranoia research at the IoPPN. Lead & develop computational work, collaborate with experimentalists on psychosis/THC data. DM for details! lnkd.in/eCMy9Jf5
Computational postdoc ad for KCL funded by the Wellcome Trust on the NEPTUNE project
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