Ali Haydaroğlu

Tomorrow at #NeurIPS2025! Oral at 10 am in UL Ballroom 20D and poster #2016 at 11 am. @haydari.bsky.social and I are looking forward to hearing your thoughts.

congrats!!

congrats Tom, Montreal is lovely I’m sure you’ll enjoy it!

🎉 "High-dimensional neuronal activity from low-dimensional latent dynamics: a solvable model" will be presented as an oral at #NeurIPS2025 🎉

Feeling very grateful that reviewers and chairs appreciated concise mathematical explanations, in this age of big models.

www.biorxiv.org/content/10.1...
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Null and Noteworthy: Downstream brain areas read visual cortex signals en masse in mice The finding contradicts a theory that the regions prioritize neurons that are adept at identifying specific stimuli. Plus, a response to a study that questioned immune memory in astrocytes.

Some neurons respond more strongly to visual stimuli than others. But the rest of the brain doesn’t prioritize signals from those neurons, according to a new study. Read more in this month’s Null and Noteworthy.

By @ldattaro.bsky.social

#neuroskyence

www.thetransmitter.org/null-and-not...

Introducing our new favorite stimulus. A few minutes are enough to map the visual preferences of thousands of neurons.

Mapping the visual cortex with Zebra noise and wavelets
www.biorxiv.org/content/10.1...

By Sophie Skriabine and Max Shinn, with Samuel Picard and
@kenneth-harris.bsky.social

New by Agnès Landemard (@agnesland.bsky.social‬) & co

Brainwide blood volume reflects opposing neural populations

Brainwide fluctuations in blood volume arise from two populations with opposite relation to brain state and distinct relationships to blood supply

www.biorxiv.org/content/10.1...

Our new preprint 👀

High-dimensional neuronal activity from low-dimensional latent dynamics: a solvable model Computation in recurrent networks of neurons has been hypothesized to occur at the level of low-dimensional latent dynamics, both in artificial systems and in the brain. This hypothesis seems at odds ...

The firing of neural populations is high-dim even if their subthreshold activity is low-dim! This work by @bio-emergent.bsky.social and @haydari.bsky.social shows how, with a solvable model, a data analysis technique, and data from mouse visual cortex: www.biorxiv.org/content/10.1...

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).

So cool! Congrats :)

Two neurons in front of a Neuropixels probe. One neuron says to the other: "Don't look, but I think we're being followed!".

Our paper describing UnitMatch software "tracking neurons across days with high-density probes", appeared in this month's issue of #NatureMethods. Missed it? Read it here: www.nature.com/articles/s41...

If you do multi-plane 2p imaging, you may see the same cells across planes. We built Suite3D exactly for this purpose! It removes duplicates, corrects axial movement, finds more cells with less noise, much faster than alternatives.

github.com/alihaydarogl...

Try on your data, and reach out!