Neuroscientist at ESPCI Paris, Professor of Neurobiology, studying memory and circuits. Genuinely curious about people's behavior.
veterelab.weebly.com
Gisella Vetere
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We also see a shift in CA1 recruitment during learning.
Neurons active before the threat, when the animal is simply exploring the context, are excluded from the engram.
This suggests that the hippocampus updates which neurons will store the memory as the experience unfolds.
bsky.app/profile/clem...
Gisella Vetere
During learning, the hippocampus activates multiple neuronal ensembles at different moments of the experience.
But these neurons are not equivalent.
Some participate in the experience…
others become the actual memory trace.
This suggests a new view of memory formation:
Memories are assembled piece by piece, with the brain selecting specific neurons at critical moments to build the final engram.
Very excited to share this work with a dream team! @clementpouget.bsky.social @tinakim-neuro.bsky.social @brimble.bsky.social
How does the brain build a memory?
A common assumption is that the neurons activated during an experience collectively form the memory engram.
In our new Nature Neuroscience paper (finally out!), we show that this is not the case.
www.nature.com/articles/s41...
Excited to have @rafaelyuste.bsky.social as our third #OptoGRC2026 keynote speaker!
Join us for his talk on how neural circuits & dendritic spines work together to "orchestrate" brain activity 🎹✨
Don’t miss the chance to attend — registration closes 4/12.
www.grc.org/optogenetic-...
Small perturbations spark big discoveries at #OptoGRC2026 🧬⚡
Led by Erin Calipari with Guosong Hong, @kacummings.bsky.social, Conor Liston, David Anderson, Akemi Ito & Ishaan Kapoor, on Monday morning!
Pouget et al. identified distinct CA1 neuron ensembles active during specific moments of fear learning and uncovered the core engram essential for memory formation.
Thrilled to welcome back 2024 chair @oyiz.bsky.social as one of our #OptoGRC2026 keynote speakers!
Don’t miss his Sunday evening talk, framing the week ahead with a big-picture look at optogenetics and why it matters 🔦🤔
Apply to attend: www.grc.org/optogenetic-...
Gisella Vetere
Returning as #OptoGRC2026 co-chair, meet @bjmarlin.bsky.social!
She's an assistant professor at @columbiauniversity.bsky.social & is most looking forward to seeing old friends & new data.
Bianca is also a proud bug mom, welcoming her first walking stick bug babies to her collection in September 🐛
Gisella Vetere
#OptoGRC2026 is just around the corner!
We are thrilled for this year's program, including keynote speakers @oyiz.bsky.social, Sheena Josselyn, and @rafaelyuste.bsky.social.
Applications to attend are still being accepted through April 12. Register now👇
www.grc.org/optogenetic-...
Gisella Vetere
#OptoGRC2026 has officially come to a close!
Thank you to our incredible lineup of speakers, discussion leaders, and poster presenters – and to everyone who joined us and made this a meeting we won’t forget.
Stay tuned for more on #OptoGRC2028!
