Chris Baker
@cibaker.bsky.social
770 followers 540 following 6 posts
Cognitive neuroscientist interested in high level vision (faces, scenes etc.), learning and plasticity. All views are my own.
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Reposted by Chris Baker
sabina-srokova.bsky.social
New paper alert! 🚨 We show that age-related neural dedifferentiation in scene-selective cortex is tied to changes in eye movements. Using simultaneous fMRI + eye-tracking, we found that younger adults’ fixations covary with scene specificity, but this link weakens with age.

Link in post below 👇
Reposted by Chris Baker
neurosteven.bsky.social
🧠 New preprint: Why do deep neural networks predict brain responses so well?
We find a striking dissociation: it’s not shared object recognition. Alignment is driven by sensitivity to texture-like local statistics.
📊 Study: n=57, 624k trials, 5 models doi.org/10.1101/2025...
cibaker.bsky.social
Happy to hear any and all feedback on our discussion article!

So much fun to work with this amazing set of authors :)
jbrendanritchie.bsky.social
Our target discussion article out in Cognitive Neuroscience! It will be followed by peer commentary and our responses. If you would like to write a commentary, please reach out to the journal! 1/18 www.tandfonline.com/doi/full/10.... @cibaker.bsky.social @susanwardle.bsky.social
Reposted by Chris Baker
amandakrobinson.bsky.social
Excited to have this one out! We found that the perception of illusory faces relies on parallel brain representations of faces and objects with different dynamics, enabling flexible behaviour.
cibaker.bsky.social
Eye movements, vision and memory through the lens of Sherlock - awesome collaborative project led by @matthiasnau.bsky.social
cibaker.bsky.social
Loss of sensory input has long been used to study brain plasticity - here, we challenge the prevailing view of massive reorganization in a longitudinal study of amputees

Massive effort from @hunterschone.bsky.social who was in the awesome NIH/UCL PhD program with @plasticity-lab.bsky.social
hunterschone.bsky.social
Now out in @natneuro.nature.com

What happens to the brain’s body map when a body-part is removed?

Scanning patients before and up to 5 yrs after arm amputation, we discovered the brain’s body map is strikingly preserved despite amputation

www.nature.com/articles/s41593-025-02037-7

🧵1/18
Reposted by Chris Baker
matthiasnau.bsky.social
Datasets like NSD & THINGS offer rich stimuli but often test a single task.

After great conversations at #CCN2025 on multi-task studies & generalization in brains & models, I thought I would repost our perspective for those interested in this topic. We need multiple tasks!👉 doi.org/10.1038/s415...
Centering cognitive neuroscience on task demands and generalization - Nature Neuroscience
Task demands are a primary determiner of behavior and neurophysiology. Here the authors discuss how understanding their influence through multitask studies and tests of generalization is the key to ar...
doi.org
Reposted by Chris Baker
irisgroen.bsky.social
After preparing for a full year together with @neurosteven.bsky.social and all other amazing organizers
of @cogcompneuro.bsky.social, #CCN2025 is finally here!

While I'm proud of the entire program we put together, I'd now like to highlight my own lab's contributions, 6 posters total:
Reposted by Chris Baker
cneuromod.ca
New CNeuroMod-THINGS open-access fMRI dataset: 4 participants · ~4 000 images (720 categories) each shown 3× (12k trials per subject)· individual functional localizers & NSD-inspired QC . Preprint: arxiv.org/abs/2507.09024 Congrats Marie St-Laurent and @martinhebart.bsky.social !!
four brain maps showing noise ceiling estimates in response to image presentation
cibaker.bsky.social
Amazing effort from @gcaedwards.bsky.social @ryanruhde.bsky.social Mica Carroll to rigorously test hf-tRNS on visual cortex. We didn’t replicate, but learned a lot and have ideas for moving forward

Thanks to @pci-regreports.bsky.social for constructive guidance through the whole process
gcaedwards.bsky.social
High-frequency transcranial random noise stimulation (hf-tRNS) targeted at motion processing region hMT+ does not improve visual motion discrimination. Failed #replication in #registeredreport

@ryanruhde.bsky.social Mica Carroll @cibaker.bsky.social

#trns #nibs #NIMH

doi.org/10.1016/j.co...

1/6
Reposted by Chris Baker
mariamolinasan.bsky.social
Can humans use artificial limbs for body augmentation as flexibly as their own hands?
🚨 Our new interdisciplinary study put this question to the test with the Third Thumb (@daniclode.bsky.social), a robotic extra digit you control with your toes!
www.biorxiv.org/content/10.1...
🧵1/10
Reposted by Chris Baker
sjgotts.bsky.social
New work from our lab investigating the relationship between repetition suppression, repetition priming and increases in oscillatory power in simultaneous fMRI-EEG. Induced power increases are strongly associated with priming magnitude, supporting a mix of the synchrony and facilitation models.
biorxivpreprint.bsky.social
Repetition-related reductions in neural activity support improved behavior through increases in oscillatory power https://www.biorxiv.org/content/10.1101/2025.07.06.663291v1
Reposted by Chris Baker
irisgroen.bsky.social
In these tumultuous times, still happy to report a scientific achievement: our preprint on affordance perception was just published in PNAS!

www.pnas.org/doi/10.1073/...

Using behavior, fMRI and deep network analyses, we report two key findings. To recapitulate (preprint 🧵lost on other place):
Representation of locomotive action affordances in human behavior, brains, and deep neural networks | PNAS
To decide how to move around the world, we must determine which locomotive actions (e.g., walking, swimming, or climbing) are afforded by the immed...
www.pnas.org
Reposted by Chris Baker
levandyck.bsky.social
How is high-level visual cortex organized?

In a new preprint with @martinhebart.bsky.social & @kathadobs.bsky.social, we show that category-selective areas encode a rich, multidimensional feature space 🌈

www.biorxiv.org/content/10.1...
#neuroskyence

🧵 1/n
www.biorxiv.org
Reposted by Chris Baker
mgreenephd.bsky.social
I'm excited to announce that my lab's open textbook on Scientific Computing for Cognitive Neuroscience (v1.0) has just gone live! Our goal is to help mend the gap between the computational skills needed by cognitive neuroscience, and typical curricula that don't yet include it. 1/3
Reposted by Chris Baker
fraserwsmith.bsky.social
Three year postdoc in cognitive computational neuroscience (Norwich, UK): using neuroimaging and deep learning to probe the neural mechanisms underlying material perception (across vision and touch)

deadline **May 19th**

repost pls
#compneurosky
#neuroskyence
#VisionScience
#PsychSciSky
#neuroAI
Reposted by Chris Baker
emaliemcmahon.bsky.social
I am excited to share our recent preprint and the last paper of my PhD! Here, @imelizabeth.bsky.social, @lisik.bsky.social, Mick Bonner, and I investigate the spatiotemporal hierarchy of social interactions in the lateral visual stream using EEG-fMRI.

osf.io/preprints/ps...

#CogSci #EEG
Shown is an example image that participants viewed either in EEG, fMRI, and a behavioral annotation task. There is also a schematic of a regression procedure for jointly predicting fMRI responses from stimulus features and EEG activity.
Reposted by Chris Baker
Reposted by Chris Baker
afni-pt.bsky.social
The result of a large (42 authors!) collaboration:
"Go Figure: Transparency in neuroscience images preserves context and clarifies interpretation"
arxiv.org/abs/2504.07824
TL;DR: The FMRI world can (and should) improve results interpretation and reproducibility *today*, via transparent thresholding.
Reposted by Chris Baker
annemscheel.bsky.social
Chuffed and excited to announce a new journal section in Cortex:
*Methods and Assumptions* is open for submissions starting today!

Read the opening editorial here (OA): www.sciencedirect.com/science/arti... 1/
Methods and Assumptions: A new section in Cortex
www.sciencedirect.com