Eric Ceballos

@cebric.bsky.social

Graduate Student in Neuroscience Montreal Neurological Institute McGill University

Researchers have identified superparamagnetic macrophages in the livers of rock pigeons to be crucial for magnetic sensing. The finding uncovers an unexpected role for immune cells in sensory perception and may fundamentally change our understanding of animal navigation. https://scim.ag/4nTQ3nq

How animals sense Earth’s magnetic field is one of biology’s enduring mysteries. Researchers have now identified superparamagnetic macrophages in the livers of rock pigeons (Columba livia) to be crucial for magnetic sensing. The finding uncovers an unexpected role for immune cells in sensory perception and may fundamentally change our understanding of animal navigation.

Photo: Andreas Teichmann/laif/Redux

Do brain circuits really sit in a 'soup' of neuromodulators? Are neurons like soggy bits of bread soaked in signaling factors? Is the whole brain just squelching around in one big pool of warm modulators?

Delighted that our paper about benchmarking gene expression 🧬 in macaque brain 🐒🧠(www.science.org/doi/10.1126/...) was selected for this year's Brain Star Award of the Canadian Neuroscience Association 🇨🇦 - what an honour to be named among such talented scientists!

science.org

Canadian Association for Neuroscience@canacn.bsky.social · 3mo ago

CAN and CIHR-INMHA are very proud to announce the winners of the 2025 Brain Star awards. See all their profiles here: can-acn.org/congratulati...

Astrocytes do so much more than any of us thought - they even communicate among specific brain regions across hemispheres! The journey to this paper spanned nearly a decade, but I'm most excited to see what everyone else does with the tools we've built. There's so much for all of us to explore!

Astrocytes connect specific brain regions through plastic networks - Nature

Communication between distant brain regions is mediated by plastic networks of gap junction-coupled astrocytes.

nature.com

First off, these cells are gigantic. This one, for example, has >72 cm of axon! To our knowledge, it’s the longest neuron ever fully reconstructed. I leave it to the reader as an exercise to estimate the length of a human LC neuron. 5

The complete morphology of a single LC-NE neuron.

Using simulations, we investigated whether Value-Shaping imitation was always a good thing. And it's not (or is it ?? *gasp*) 🧵

Stefano Palminteri@stepalminteri.bsky.social · 4mo ago

📄 New preprint: The blessing and curse of Value-Shaping imitation (by @isabellehoxha.bsky.social) osf.io/preprints/ps... Imitation is central to human learning: but not all imitation processes are equally adaptive. We study their computational properties using reinforcement learning models.

Wanna do neuroscience in Paris but can't find interesting lab? Want to come do a sabbatical but don't know who to collaborate? Check this webpage aggregating ~all the neuroscience labs (+200) in Paris. ⚠️only the information of 'verified' profiles is reliable⚠️ Please retweet 🙏 parisneuro.fr

Bild

Correlating brain maps across datasets is everywhere in neuroimaging. Here we ask: when you contextualize a brain map against genes, metabolism, or connectivity... What can you really conclude? How can we do better? We explore these questions here: tinyurl.com/2dudkevc

Opportunities and pitfalls of data contextualization in neuroimaging - Nature Reviews Neuroscience

Despite rapid exploitation of the opportunities that contextualization of brain maps affords, potential limitations have received little attention. In this Roadmap, Royer et al. provide practical guid...

tinyurl.com

🧠What if increasing neuronal firing could actually reduce fMRI connectivity? 📡What drives long-range fMRI connectivity? I’m very excited to share that my PhD work is now out as a preprint Check this out! 👇 doi.org/10.64898/202...

Bild

Curious about how brain and body communicate, or how circuit states are regulated over seconds to hours? Read our paper about neuropeptide systems and how they contribute to neural architecture and function #neuroskyence #compneuro #neuroscience

Bratislav Misic@misicbata.bsky.social · 5mo ago

Organization of neuropeptide systems in the human brain | doi.org/10.1038/s415... Neuropeptides are functionally diverse signaling molecules in the brain and body. @cebric.bsky.social curates an atlas of neuropeptide receptors and relates it to brain function @natneuro.nature.com 🧩 🧠 ⤵️

Spatial organization of AQP4 channels in the human brain: links with perfusion, edema, and disease vulnerability | doi.org/10.64898/202... Aquaporins are a key component of the brain’s glymphatic system. How are they distributed and how do they relate to healthy brain function and dysfunction? ⤵️

Bild