🏰 New preprint! 🏰 (w/ the excellent @neuronomist.bsky.social & Prof. Jason Mattingley) For my PhD I've been using EEG, psychophysics and modelling to explore how the brain uses uncertainty to balance sensory information against expectations about what's out there. 🧵1/n

My first foray into explicitly trying to bridge Marr’s levels, with @bealebrains.bsky.social. Inspired by Hahn and Wei’s models (pubmed.ncbi.nlm.nih.gov/38360947/), we wondered how the brain could instantiate sensory inference with efficient /decoding/ properties. 1/

Using time-resolved EEG/MEG decoding?🧠 Here’s a new approach! No feature engineering (decode from raw signals), but capturing info that standard decoding often misses (oscillatory/aperiodic activity, connectivity). Lightweight, INTERPRETABLE, and easy to use. (1/6) www.biorxiv.org/content/10.6...

"The Analytical Engine has no pretensions whatever to originate any thing. It can do whatever we know how to order it to perform. It [cannot] anticipat[e] any analytical relations or truths. Its province is to assist us in making available what we are already acquainted with." — Ada Lovelace, 1843

Our paper on double decisions in working memory tasks is now published in Computational Brain and Behaviour! When you give people a second chance, it reveals a lot about the contents of their memory. Led by @paulmgarrett.bsky.social @psychunimelb.bsky.social rdcu.be/e8SLX

I'm looking for a skilled PhD student who doesn't want to work too hard but still do great science: unisc-cp.enquire.cloud/round/RND-00...

To add to this: now is the time we need human to human training and transfer of verifiable research and scholarship skills. As much as tech bros want to replace your jobs, legitimate scientists are now more important than ever.

Excited to share our new paper in @pnas.org with @bnmorillon.bsky.social & @valentinwyart.bsky.social www.pnas.org/doi/10.1073/... We study three core inference systems, and how their interaction shapes human learning and decision-making.

𝗪𝗵𝗮𝘁 𝗶𝘀 𝗰𝗼𝗺𝗽𝘂𝘁𝗮𝘁𝗶𝗼𝗻 𝗶𝗻 𝗱𝘆𝗻𝗮𝗺𝗶𝗰𝗮𝗹 𝘀𝘆𝘀𝘁𝗲𝗺𝘀? Interesting paper tackling this difficult question. Answer (in part): it's complicated! The same fixed system can be interpreted as implementing many (even infinitely many) computations depending on the chosen decoding map. doi.org/10.1088/2632...

Why do children struggle to recognise objects in cluttered scenes more than adults? Our new paper looks at the development of visual acuity and crowding across childhood, and the way the visual system fine tunes our ability to see detail: www.nature.com/articles/s41...

from a published academic paper by highly influential authors: pmc.ncbi.nlm.nih.gov/articles/PMC...

Our latest paper, “Visual language models show widespread visual deficits on neuropsychological tests”, is now out in Nature Machine Intelligence: www.nature.com/articles/s42... Non-paywalled version: arxiv.org/abs/2504.10786 Tweet thread below from first author @genetang.bsky.social...

Visual confidence accurately tracks increasing internal noise with eccentricity in peripheral vision https://www.biorxiv.org/content/10.64898/2026.01.28.702447v1

Check out our new paper on Journal of Vision showing that both endogenous and exogenous attention enhance contrast sensitivity uniformly across meridians despite differential adaptation effects! jov.arvojournals.org/article.aspx...

How do people compute a sense of confidence? This question is usually addressed using very simple images because we don't know how complex stimuli are represented internally. In a new paper, we addressed this question using artificial neural networks (ANNs). journals.plos.org/ploscompbiol...

With some trepidation, I'm putting this out into the world: gershmanlab.com/textbook.html It's a textbook called Computational Foundations of Cognitive Neuroscience, which I wrote for my class. My hope is that this will be a living document, continuously improved as I get feedback.

At the Bernstein Conference 2024, Jeremie Lefebvre and I organized a workshop on the computational consequences of neural heterogeneity. Now, slightly more than a year later, we funneled the emerging discussions into a perspective piece: www.cell.com/neuron/fullt...

We recently published a theoretical review about how compositional and generative mechanisms in working memory provide a flexible engine for creative perception and imagery. Pre-print: osf.io/preprints/ps... Paper: www.sciencedirect.com/science/arti...

Happy to share this new paper from the lab led by Angus Chapman, now out in PLoS Biology! It presents an integrated spatiotemporal normalization model for continuous vision. @afchapman.bsky.social journals.plos.org/plosbiology/...

🚨 new preprint alert! biorxiv.org/content/10.1... what is the architecture of an individual working memory? 1/n

Interested in how we make preference-driven decisions, and how this is implemented in the brain? We report that neural correlates of evidence accumulation (CPP, Mu/Beta) are also observed during value-based decisions. www.biorxiv.org/content/10.1... Led by @laurencf.bsky.social (Lauren Fong) 1/n

What is the representation underlying cognition? Formal models rely on multidimensional scaling of similarity judgments to derive the representation. In this preprint with @mdlbayes.bsky.social, we take an alternative approach; we build Bayesian generative models for three cognitive tasks. /1

How does our brain excel at complex object recognition, yet get fooled by simple illusory contours? What unifying principle governs all Gestalt laws of perceptual organization? We may have an answer: integration of learned priors through feedback. New paper with @kenmiller.bsky.social! 🧵

Super happy to share my very first first-author paper out in @sfnjournals.bsky.social! We show content-specific predictions are represented in an alpha rhythm. It’s been a beautiful, inspiring, yet challenging journey. Huge thanks to everyone, especially @peterkok.bsky.social @jhaarsma.bsky.social

📜🎉 I'm happy to share that my review of clinical research investigating aperiodic neural activity is now published! It examines 177 reports of aperiodic activity in clinical disorders summarizing findings, discussion topics, & making some recommendations! onlinelibrary.wiley.com/doi/10.1111/...

The final bit of work from my PhD just got published at JOV! We looked at similarity judgements made for naturalistic image patches, and whether these are predicted by simple image statistics… (spoiler: yep!) Link to paper: doi.org/10.1167/jov.... 1/11

Long time in the making: our preprint of survey study on the diversity with how people seem to experience #mentalimagery. Suggests #aphantasia should be redefined as absence of depictive thought, not merely "not seeing". Some more take home msg: #psychskysci #neuroscience doi.org/10.1101/2025...

We present our preprint on ViV1T, a transformer for dynamic mouse V1 response prediction. We reveal novel response properties and confirm them in vivo. With @wulfdewolf.bsky.social, Danai Katsanevaki, @arnoonken.bsky.social, @rochefortlab.bsky.social. Paper and code at the end of the thread! 🧵1/7

Happy to share a new preprint in which @paulbuerkner.com and I introduce a novel model-based approach for precisely estimating the onset and offset of M/EEG effects! www.biorxiv.org/content/10.1...

🚨Pre-print of some cool data from my PhD days! doi.org/10.1101/2025... ☝️Did you know that visual surprise is (probably) a domain-general signal and/or operates at the object-level? ✌️Did you also know that the timing of this response depends on the specific attribute that violates an expectation?

New paper in Imaging Neuroscience, Generation of surrogate brain maps preserving spatial autocorrelation through random rotation of geometric eigenmodes direct.mit.edu/imag/article... Produces surrogates for null hypothesis testing of nonlinear effects within and correlations between brain maps

Out now @cp-trendscognsci.bsky.social, w/ @akalt.bsky.social & @drmattdavis.bsky.social. Are sensory sampling rhythms fixed by intrinsically-determined processes, or do they couple to external structure? Here we highlight the incompatibility between these accounts and propose a resolution [1/6]

New preprint from the lab! We tested for effects of learning scene-object pairings on distributed patterns of EEG signals. We report clear effects on ERPs but not object decoding performance. Led by Morgan Kikkawa w/Marta Garrido www.biorxiv.org/content/10.1...

"The finding of statistical significance is perhaps the least important attribute of a good experiment...." David Lykken (1968). Statistical significance in psychological research. Psychological Bulletin. doi.org/10.1037/h002...

New paper out in @plosbiology.org w/ Charlie, @phil-johnson.bsky.social, Ella, and Hinze 🎉 We track moving stimuli via EEG, find evidence that motion is extrapolated across distinct stages of processing + show how this effect may emerge from a simple synaptic learning rule! tinyurl.com/2szh6w5c

Info theory offers powerful measures for capturing complexity & interaction among elements of a complex system, like the brain! 🧠 Here's our new unified reference for key info-theoretic time series measures ft. 📊 visuals, ➗equations, & 💬descriptions: arxiv.org/abs/2505.13080

Excited to share my PhD paper! In it, we use targeted 2-photon optogenetic stimulation to determine how V1 activity is read-out in a detection task. We found that network influence, not visual coding properties, predicted the impact of ensembles on behavior - contradicting our expectations (1/5).

“Science is a smart, low cost investment. The costs of not investing in it are higher than the risk of doing so… talk to people about science.” - @kevinochsner.bsky.social makes his case to the field #sans2025

Very happy to see our work finally in print! www.pnas.org/doi/10.1073/... TLDR: Tilt illusion is not a bug, but a feature of a well-designed visual system that maximizes information capacity adaptively based on spatial context. (1/6)

🚨New paper alert! 🚨 Can your brain teach a neural network how to see? We trained a convolutional neural net using EEG recordings to reveal how task goals shape visual processing in the human brain. 👇 [Link to paper: doi.org/10.1038/s415... 1/8

Hot off the presses: big update to our work looking at how adaptive decoders influence neural representations. We added heroic analyses to show in both experiments & models that the structure of what the brain learns is altered by adaptive decoders. Check it out: www.biorxiv.org/content/10.1...

Our "I would have seen it if it were there" paper — a collaboration with @ranimo.bsky.social and @clarepress.bsky.social — is now out in Psych. Review. There’s a lot in this paper, but here are what I see as the 3 main takeaways: psycnet.apa.org/fulltext/202...

Spent another couple of hours this week responding to reviewers and defending our research studies that have - Shock! Horror! - 10 to 15 participants per experiment. In case anyone else was not listening during #stats classes: Small N ≠ Low power theerrorbar.com?e=37

Our new preprint is now on bioRxiv! 'Visual adaptation stronger at horizontal than vertical meridian: Linking performance with V1 cortical surface area' www.biorxiv.org/content/10.1...

In this thread, I introduce the ‘Blindfold Test’ — a new tool for deciding whether an experimental effect reflects perception, or higher-level judgment. Paper here: www.nssrperception.com/docs/van%20B...

We show here that neural travelling waves may not indicate the direction of information flow - counter to the common interpretation. To recover information flow, the conventional phase-based methods should be supplemented by causal inference techniques like Granger causality 1/2

Many neuroscience students are steeped in an experiment-first style of thinking that leads to “random walk science.” Let’s not forget how theory can guide experiments towards deeper insights, writes @gershbrain.bsky.social. #neuroskyence www.thetransmitter.org/theoretical-...

Incredible diversity of eyes and vision across animals! These reviews really make you appreciate the evolution of the eyes and their perfect adaptation to the animal's lifestyle. Mice don't have a fovea, Hawks have two! Review 1: doi.org/10.1146/annu... Review 2: www.nature.com/articles/s41...