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Tim Behrens

@behrenstimb

Slowly becoming a neuroscientist. EiC @elife.bsky.social

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13.11.2024
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Latest posts by Tim Behrens @behrenstimb

Wanna present it in our lab some time?

09.03.2026 21:02 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

We show that synesthesia is sensory and automatic in nature: the pupil scales with the brightness of experienced synesthetic colors. doi.org/10.7554/eLif...
Now in its new dress @elife.bsky.social (convincing & valuable in round 1).
If anyone wants to pick up the method, happy to share & explain!

07.03.2026 07:58 πŸ‘ 73 πŸ” 22 πŸ’¬ 4 πŸ“Œ 0

The post will be based in the Neuroinformatics Unit at @sainsburywellcome.bsky.social, working with the Mrsic-Flogel, Branco and @behrenstimb.bsky.social labs.

Start ASAP, funded until Sept 2028 in the first instance. Salary Β£54-62k.

05.03.2026 15:44 πŸ‘ 3 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
Drawing of the "Aeon" project, an open-source platform to study the neural basis of ethological behaviours over naturalistic timescales.

Drawing of the "Aeon" project, an open-source platform to study the neural basis of ethological behaviours over naturalistic timescales.

Are you a neuroscientist with great coding skills, or a software engineer interested in the brain?

We are recruiting for a research software engineer to help us build pipelines to process weeks of neural and behavioural recordings from freely moving animals.

More details: bit.ly/rse-2026a

05.03.2026 15:44 πŸ‘ 16 πŸ” 18 πŸ’¬ 1 πŸ“Œ 2

Peer review would be easier if we stopped treating it like combat with the authors. Results want to be free, and perfect is the enemy of good. Do the data support the conclusions? If so, that’s enough. A paper isn’t a blank slate for projecting your own ideas.

02.03.2026 17:56 πŸ‘ 110 πŸ” 24 πŸ’¬ 4 πŸ“Œ 1
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πŸ› οΈ February’s most-read Tools and Resources paper introduces idtracker.ai to rethink multi-animal tracking: buff.ly/Ho0b3xz

Learn more about publishing your tools or resources with us: buff.ly/pivLQX0

28.02.2026 20:28 πŸ‘ 5 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

London #neuroscience people you may like this. We're hosting a series of talks at Imperial & Crick on how to get experiment and theory working together better. Each session will have a talk around this and extended networking / group discussion on the questions raised. Plus, free food!

πŸ€–πŸ§ πŸ§ͺ

26.02.2026 14:27 πŸ‘ 30 πŸ” 10 πŸ’¬ 1 πŸ“Œ 0

Triple paper drop from the inimitable @willydorrell.bsky.social :

1) A normative theory of prefrontal working memory slots.

2) A comprehensive review of normative theories of why grid cells look like grid cells.

3) A new theory of convex efficient coding.

(0/3)

26.02.2026 21:49 πŸ‘ 30 πŸ” 6 πŸ’¬ 1 πŸ“Œ 0

Great to see work published in @elife.bsky.social by SWC Senior Research Fellow @mathiassablemeyer.bsky.social

Completed at @college-de-france.fr & NeuroSpin (CEA) with @standehaene.bsky.social, the study explores how we perceive shapes.

Blog: www.sainsburywellcome.org/blog/languag...

Paper ‡️

24.02.2026 12:18 πŸ‘ 6 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

Can confirm it snowed in manhattan too.

23.02.2026 22:39 πŸ‘ 11 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Yes! Thanks so much for looking after me in the storm! Delicious and great fun!

23.02.2026 09:54 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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New York City bans non-essential travel as major blizzard hits east coast of US Across the US, thousands of flights have been cancelled, and more than 200,000 homes and businesses are without power.

Ok that escalated quickly

www.bbc.co.uk/news/live/cy...

23.02.2026 09:53 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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23.02.2026 02:04 πŸ‘ 5 πŸ” 0 πŸ’¬ 2 πŸ“Œ 1
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Cold Spring Harbor living up to its name. Brrrr

22.02.2026 17:00 πŸ‘ 18 πŸ” 1 πŸ’¬ 2 πŸ“Œ 0
OSF

Interested in cognitive maps? Wondering how you should best train your participants? Luckily for you, we have investigated just that! Very excited to share a preprint from my PhD in which we show how initial training curriculum affects the cognitive maps we form

osf.io/preprints/ps...

[1/6]

16.02.2026 11:28 πŸ‘ 29 πŸ” 5 πŸ’¬ 1 πŸ“Œ 1

Thrilled to finally share this work! πŸ§ πŸ”Š

Using a new reinforcement-free task we show mice (like humans) extract abstract structure from sound (unsupervised) & dCA1 is causally required by building factorised, orthogonal subspaces of abstract rules.

Led by Dammy Onih!
www.biorxiv.org/content/10.6...

16.02.2026 13:01 πŸ‘ 151 πŸ” 52 πŸ’¬ 3 πŸ“Œ 2

SWC is the best place to do neuroscience in the world

14.02.2026 00:02 πŸ‘ 21 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0

We will consider anyone but you will need to convince us you can lead a program that will link the world class systems neuro at SWC with human ephys work in London and more globally,

13.02.2026 21:07 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
We're hiring! This is a unique opportunity to translate our understanding of neural computation - from circuit-level mechanisms to computational principles -  into the human brain, through the establishment of cutting-edge human neural recording capabilities with collaborators in London and abroad.

We're hiring! This is a unique opportunity to translate our understanding of neural computation - from circuit-level mechanisms to computational principles - into the human brain, through the establishment of cutting-edge human neural recording capabilities with collaborators in London and abroad.

We’re hiring a Group Leader!

Join us to lead a transformative initiative in human systems neuroscience.

Find out more and apply ‡️

www.sainsburywellcome.org/content/curr...

13.02.2026 13:41 πŸ‘ 31 πŸ” 25 πŸ’¬ 1 πŸ“Œ 4

Awesome new opportunity to join SWC if you are into human ephys.

13.02.2026 18:05 πŸ‘ 4 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0

If you work at the intersection of computational neuroscience and machine learning, consider applying for this postdoc position (January 2027 start date):
academicpositions.harvard.edu/postings/15868
An opportunity to work with a great group of people across Harvard, MIT, and UC Berkeley.

10.02.2026 19:36 πŸ‘ 72 πŸ” 48 πŸ’¬ 3 πŸ“Œ 2
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At eLife, we have always prioritised quality, constructive reviews.

Today, peer review is part of the paper. Reviews are published as soon as they're in, rejection doesn’t follow review, and the focus stays on strengthening the science in a way that works for authors.
@oxfordpsychiatry.bsky.social

05.02.2026 19:25 πŸ‘ 5 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Why don’t neural networks learn all at once, but instead progress from simple to complex solutions? And what does β€œsimple” even mean across different neural network architectures?

Sharing our new paper @iclr_conf led by Yedi Zhang with Peter Latham

arxiv.org/abs/2512.20607

03.02.2026 16:19 πŸ‘ 154 πŸ” 41 πŸ’¬ 7 πŸ“Œ 3
A functional influence based circuit motif that constrains the set of plausible algorithms of cortical function There are several plausible algorithms for cortical function that are specific enough to make testable predictions of the interactions between functionally identified cell types. Many of these algorithms are based on some variant of predictive processing. Here we set out to experimentally distinguish between two such predictive processing variants. A central point of variability between them lies in the proposed vertical communication between layer 2/3 and layer 5, which stems from the diverging assumptions about the computational role of layer 5. One assumes a hierarchically organized architecture and proposes that, within a given node of the network, layer 5 conveys unexplained bottom-up input to prediction error neurons of layer 2/3. The other proposes a non-hierarchical architecture in which internal representation neurons of layer 5 provide predictions for the local prediction error neurons of layer 2/3. We show that the functional influence of layer 2/3 cell types on layer 5 is incompatible with the hierarchical variant, while the functional influence of layer 5 cell types on prediction error neurons of layer 2/3 is incompatible with the non-hierarchical variant. Given these data, we can constrain the space of plausible algorithms of cortical function. We propose a model for cortical function based on a combination of a joint embedding predictive architecture (JEPA) and predictive processing that makes experimentally testable predictions. ### Competing Interest Statement The authors have declared no competing interest. Swiss National Science Foundation, https://ror.org/00yjd3n13 Novartis Foundation, https://ror.org/04f9t1x17 European Research Council, https://ror.org/0472cxd90, 865617

Our work with @georgkeller.bsky.social on testing predictive processing (PP) models in cortex is out on biorvix now! www.biorxiv.org/content/10.6... A short thread on our findings and thoughts on where we should move on from PP below.

30.01.2026 14:37 πŸ‘ 47 πŸ” 16 πŸ’¬ 2 πŸ“Œ 1

This is super cool!

30.01.2026 18:26 πŸ‘ 11 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

We think cortex might function like a JEPA. It looks like prediction errors in layer 2/3 are not computed against input (as is the idea in predictive processing), but against a representation in latent space (i.e. like in a JEPA arxiv.org/abs/2301.08243 or RPL doi.org/10.1101/2025...).

30.01.2026 14:51 πŸ‘ 44 πŸ” 12 πŸ’¬ 2 πŸ“Œ 2

Let me believe it’s magic for at least a year before you show me how it works please!

28.01.2026 21:27 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The supplementary videos for this preprint are fantastic. Some wild examples of decoding the animal's attentional focus and/or intent
www.biorxiv.org/content/10.6...

28.01.2026 14:04 πŸ‘ 21 πŸ” 5 πŸ’¬ 0 πŸ“Œ 1

This is totally wild. Remember the object they are attending to is presented egocentrically, but the allocentric theta sweeps follow it. The whole system is wired up to provide something like an "integrated attention reflex".

28.01.2026 10:28 πŸ‘ 36 πŸ” 5 πŸ’¬ 2 πŸ“Œ 0
Localizing the brain systems involved in geometric shape perception.

Localizing the brain systems involved in geometric shape perception.

A geometric shape regularity effect in the human brain.

πŸ”— buff.ly/4UsILev

27.01.2026 16:11 πŸ‘ 9 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0