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Guillaume Viejo

@guillaumeviejo.bsky.social
186 followers 320 following 10 posts

Associate Research scientist at Flatiron. Core developer of @pynapple.bsky.social

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Reposted by Guillaume Viejo
Pynapple @pynapple.bsky.social · 28/08/2026
Wolf de Wulf (@wulfdewolf.bsky.social) teaching pynapple at the Sainsbury Wellcome Centre’s Open Software Summer School @neuroinformatics.dev ! Students learned to build a reproducible pipeline, starting from raw electrophysiological data and working all the way to answering neuroscience questions.
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Reposted by Guillaume Viejo
Wolf De Wulf @wulfdewolf.bsky.social · 19/06/2026
It was an eager crowd! Many got to decoding head direction from population activity, some without having used Python before. Thanks for having me, and thanks as well to the @simonsfoundation.org for funding the development of packages like Pynapple (@guillaumeviejo.bsky.social & Sarah Jo Venditto)
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Reposted by Guillaume Viejo
Adrian Duszkiewicz @adrian-du.bsky.social · 19/06/2026
Fantastic turnout at the @dns-uom.bsky.social's inaugural Neural Data Analysis Workshop, over 20 ECRs attending the talks and hands-on sessions 🧠💻⚡ Huge thanks to @wulfdewolf.bsky.social, @ennyvb.bsky.social and Chris Halcrow for walking us through their cutting-edge tools! Links in the comments👇
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Reposted by Guillaume Viejo
Adrian Duszkiewicz @adrian-du.bsky.social · 01/06/2026
Calling all fans of neuronal spikes at @manchester.ac.uk 🚨 Don't miss out on our first workshop on open-source tools for neural data analysis ⚡🧠 Speakers: @ennyvb.bsky.social (UCL), @wulfdewolf.bsky.social & Chris Halcrow (University of Edinburgh) Many thanks to @dns-uom.bsky.social for support!
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Reposted by Guillaume Viejo
Adam Tyson @adamltyson.com · 09/04/2026
Last chance to apply for this fantastic workshop! Just before FENS, learn how to analyse neural data from the developers of pynapple and NeMoS.
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Guillaume Viejo @guillaumeviejo.bsky.social · 07/04/2026
Last week to apply for the FENS workshop in Barcelona to learn about @pynapple.bsky.social and Nemos.
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Reposted by Guillaume Viejo
Pynapple @pynapple.bsky.social · 03/03/2026
🚀 New workshop before FENS in Barcelona! Join the Flatiron Institute Center for Computational Neuroscience of the Simons Foundation for a hands-on workshop on pynapple & NeMoS. Learn to analyze and model neural data with open-source tools. Accommodation & meals included. Details ⬇️
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Reposted by Guillaume Viejo
DANDI Archive @dandiarchive.org · 27/02/2026
Mission: record hippocampal place cells in zero gravity Crew: 3 rats with electrode arrays Vehicle: Space Shuttle Columbia Status: data now publicly available on DANDI, 28 years later The ratstronauts' mission is finally complete. 🐀🚀 h/t NASA about.dandiarchive.org/blog/2026/02...
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Reposted by Guillaume Viejo
Nature @nature.com · 13/02/2026
Nature research paper: Months-long stability of the head-direction system go.nature.com/46njM0D
go.nature.com
Months-long stability of the head-direction system - Nature
Longitudinal tracking of individual head-direction cells in the post-subiculum of freely moving mice reveals a cell population structure that shifts subtly with exposure to different environments but otherwise remains highly stable.
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Guillaume Viejo @guillaumeviejo.bsky.social · 11/02/2026
This started with @sskromne.bsky.social and me building the UCLA miniscope in the lab.
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Guillaume Viejo @guillaumeviejo.bsky.social · 11/02/2026
Another successful workshop at Flatiron teaching @pynapple.bsky.social and Nemos for neural data analysis. Next workshop should happen before FENS in Barcelona. More information coming soon.
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Guillaume Viejo @guillaumeviejo.bsky.social · 16/01/2026
2 days left to register for the Pre-COSYNE Brainhack 2026 in Lisbon! A great opportunity to meet the community working on research software, while collaborating on reproducible analyses in systems neuroscience.
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Guillaume Viejo @guillaumeviejo.bsky.social · 09/01/2026
Don’t miss this! A great opportunity to learn about some really cool neuroinformatics tools for ephys, behavior & imaging ( including Pynapple 🍍)
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Reposted by Guillaume Viejo
Mattia Chini @mattiachini.bsky.social · 09/01/2026
📣 Pre-COSYNE Brainhack 2026 – Join Us in Lisbon! 🧠✨ March 10–11, 2026 • Lisbon, Portugal pre-cosyne-brainhack.github.io/hackathon2026 Kick off COSYNE week with two days of hands-on, team-based hacking around real electrophysiology data! ✅ Apply now via the event website (limited spots).
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Reposted by Guillaume Viejo
Pynapple @pynapple.bsky.social · 30/10/2025
Pynapple v0.10 is out with major changes. Unified tuning curve function now returns an xarray object, plus new flexible template-matching decoding. Join us at the Flatiron workshop this February to learn Pynapple and other tools for neural data analysis from @flatironinstitute.org.
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Reposted by Guillaume Viejo
Adrian Duszkiewicz @adrian-du.bsky.social · 21/10/2025
A 🍍 spotted in the wild at @edinburgh-uni.bsky.social! Great crash course on neuro data processing with @pynapple.bsky.social and @spikeinterface.bsky.social delivered by @matthiashennig6.bsky.social, @wulfdewolf.bsky.social and Chris Halcrow. So nice to see both libraries working so well together
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Adrian Duszkiewicz @adrian-du.bsky.social · 15/10/2025
Really excited to share this Opinion piece we've been working on with fellow head-direction cell geeks @apeyrache.bsky.social @desdemonafricker.bsky.social and (bsky-less?) Andrea Burgalossi! While head-direction cells pop up in many cortical regions, we think that one of them is quite unique (1/8)
sciencedirect.com
The postsubiculum as a head-direction cortex
The organisation of thalamocortical networks follows a conserved structure. Traditionally, these are divided into primary sensory systems that receive…
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Guillaume Viejo @guillaumeviejo.bsky.social · 16/09/2025
Finally preprinted! TL;DR: thalamic head-direction neurons can shape their activity regardless of input. Big thanks to @apeyrache.bsky.social and master experimentalist @sskromne.bsky.social .
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Reposted by Guillaume Viejo
Pynapple @pynapple.bsky.social · 11/09/2025
🎉 Deadline is *tomorrow*! Join the @flatironinstitute.org workshop on pynapple & NeMos @sfn.org this November to analyze and model neural data pynapple: analyze neural time series NeMoS: model neural population dynamics Meals + accommodation included 👉 neurorse.flatironinstitute.org/events/2025/...
neurorse.flatironinstitute.org
SfN 2025
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Reposted by Guillaume Viejo
Pynapple @pynapple.bsky.social · 09/09/2025
⏳ Deadline is next Friday! Apply now to join our #SfN25 workshop on pynapple & nemos. Learn to analyze & model neural data using software developed at @flatironinstitute.org Accommodations + meals included! 👉
neurorse.flatironinstitute.org
SfN 2025
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Reposted by Guillaume Viejo
Pynapple @pynapple.bsky.social · 11/02/2025
Thank you to everyone who joined us for our first and second Pynapple & Nemos workshops of the year at @flatironinstitute.org , NYC! Stay tuned for future event announcements. #EastCoast
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