🇬🇷 #FKNE News from Crete! 🧠 On 19 September, the FENS-Kavli Network of Excellence held its 2025 Scientific Symposium with the theme “Neuroscience through the Lens of Diversity: Levels, Methods, and Models.” 👉 https://loom.ly/DyVOs8I

1/ 🚨 New preprint! 🚨 Excited and proud (& a little nervous 😅) to share our latest work on the importance of #theta-timescale spiking during #locomotion in #learning. If you care about how organisms learn, buckle up. 🧵👇 📄 www.biorxiv.org/content/10.1... 💻 code + data 🔗 below 🤩 #neuroskyence

Congratulations to @anitaluthi.bsky.social and @manumameli.bsky.social 🎓👏 www.linkedin.com/posts/depart...

Apply! Great opportunity for young PIs.

Stoked to see this paper finally out! It answers two big questions: where visual objects are encoded in the brain, and how head-direction cells get oriented using visual landmarks. Super fun collaboration with @mace-lab.bsky.social and Stuart Trenholm. www.science.org/doi/10.1126/...

Following up: searching for the distribution of estrogen receptors in the brain, I realized the Allen Brain Atlas is male only. How is it possible that something this fundamental is still missing?

Cool new findings on interneurons and spatial coding. Nice! www.science.org/doi/10.1126/...

Finding correlates of the same signal in different brain areas is not evidence against specialisation, it is evidence for interconnection. When I flush my toilet, the level in the tank and the flow rate in the supply pipe become perfectly correlated. Yet these toilet areas have distinct functions.

*in overtrained mice

New opinion piece! @amirtal.bsky.social and I argue that "wake reactivation" is not a scientifically useful construct; It encompasses nonconscious & conscious processes w/ varying levels of elaboration & diverging consequences, leading to conflicting results authors.elsevier.com/a/1lgli4sIRvW-LQ

We are still accepting applications for the #postdoc opportunity in the lab 🕵‍♀️ 🧠 More details 👇 Postdoctoral position: lnkd.in/g4TkRxpM Research directions: lnkd.in/eV2iMKGf Our team and philosophy: lnkd.in/eh3nnNgq ⏬

#sleeppeeps:

I can't quite believe it – I got a new NSF grant! 😲🤯 I'm incredibly grateful to the program officers & reviewers for their dedication and efforts to keep science going 🌟👏🏼 So, I'll be hiring! Looking for a postdoc to study competition in memory-guided attention. See flyer for details! 🎉

Delighted to share our work on replay and successor representations! We find replay during very short task pauses in human visual cortex that is linked to learning SRs & happens when learning is implicit. Study led by @lnnrtwttkhn.bsky.social #compneuro #neuroskyence www.pnas.org/doi/10.1073/...

The lab may be suffering form a slight hexagon and rat obsession.....

Happy to announce our new paper in Nature Communications: rdcu.be/eBpGY We show how CRH in the thalamic reticular nucleus modulates NREM sleep, helping to understand how stress impacts sleep Congrats to Loredana Cumpana and team, in work led by Simone Astori! @epfl-brainmind.bsky.social‬

💤🧠🧪 New article! 🧪🧠💤 After years of effort led by @qualiastructure.bsky.social (Nao Tsuchiya and William Wong), Jenny Windt, Katja Valli, Valdas Noreika and @rherzoga.bsky.social, the Dream database is now published in @natcomms.nature.com **A dream EEG and mentation database** rdcu.be/eAwni

Disentangling the influences of pre- and postnatal periods on human cortical microstructure https://www.biorxiv.org/content/10.1101/2025.08.12.669812v1

Sleep deprivation selectively reactivates hippocampal CA1 pyramidal neurons. https://www.biorxiv.org/content/10.1101/2025.07.30.665413v1

Inhibition seems so important for SWRs. One question I find myself asking lately is if this is just a matter of the SWR generating mechanism, or if inhibitory networks are a critical part of replay’s function.

Super excited to share this one!! Meta-learning sparsity and learning rate gives rise to brain-like gradients of complementary learning systems. So complementary learning systems emerge organically through behavior optimization, and it's not just two of them!!

🗣️ Opening Plenary Lecture | Guillermina López-Bendito Join us on 4 July 2026 as Prof. Guillermina López-Bendito opens next year's #FENSForum! 🧠 🔗 Meet all the #FENS2026 speakers: https://loom.ly/Q_m95o8#FENSForum!#FENS2026#FENS #NeuroscienceConference

While I’m a big fan of new technologies that help us study human biology…there’s still no replacement for animal research! See my article in Gen News. www.genengnews.com/topics/trans...

New work! Learning is assumed to involve synaptic plasticity, but which specific synapses change to enable higher order cognitive functions? We actually find that cognitive flexibility involves potentiation of long-range GABAergic synapses from prefrontal PV neurons: www.biorxiv.org/content/10.1...

Super cool results, and another evidence that theta sweeps are more about (sequential 😉) prediction following behavior, which happens to be rhythmic in the rodent.

Different #memory domains can recruit similar brain areas, but is the role of these overlapping regions shared or domain-specific? This study shows that the function of the #hippocampus to preserve the order of sequential behaviors is shared across memory domains @plosbiology.org 🧪 plos.io/3GzcM6Q

REMI: Reconstructing Episodic Memory During Intrinsic Path Planning https://www.biorxiv.org/content/10.1101/2025.07.02.662824v1

Domestication of dogs induced the expansion of the neocortex and reduction in size of subcortical structures: www.jneurosci.org/content/45/2... Reminds me of a theory I once heard that humans basically self-domesticated themselves.

🧠 Paper out! We investigated how hippocampal and cortical ripples support memory during movie watching. We found that: 🎬 Hippocampal ripples mark event boundaries 🧩 Cortical ripples predict later recall Ripples may help transform real-life experiences into lasting memories! rdcu.be/eui9l

Curious about the visual human brain, a vibrant and collaborative lab, and pursuing a PhD in the heart of Europe? My lab is recruiting for a 3-year PhD position. More details: www.rademakerlab.com/job-add

🧠🔬 This important study demonstrates that slow fluctuations in serotonin release during wakefulness and non-REM sleep correspond to periods of heightened arousal or enhanced offline information processing, especially in the hippocampus. Congrats to the authors! elifesciences.org/reviewed-pre...

Large sharp-wave ripples promote hippocampo-cortical memory reactivation and consolidation https://www.biorxiv.org/content/10.1101/2025.06.27.662061v1

Prior knowledge influences the neural mechanisms supporting memory-based inference https://www.biorxiv.org/content/10.1101/2025.06.29.662181v1

Interleaved Replay of Novel and Familiar Memory Traces During Slow-Wave Sleep Prevents Catastrophic Forgetting https://www.biorxiv.org/content/10.1101/2025.06.25.661579v1

In this study, led by BlueSky-less superstar undergrad Andrew Lazarus, we set out to ask whether longer reactivation events during sleep lead to more memory benefits. Results suggest this is not the case, but there are some disclaimers. Read all about it! #sleep www.sciencedirect.com/science/arti...

🎉 Congratulations to the #DiversityPrize Winner! 🏆 At the 2025 #FENS Regional Meeting in Oslo, Norway, @network-alba.bsky.social and the FENS-Kavli Network of Excellence (#FKNE) awarded this year's Diversity Prize to Prof. Aikaterini Fotopoulou. 🧠 👉 https://loom.ly/dphSwoM#DiversityPrize#FENS#FKNE)#DiversityInSTEM

Very happy to see a Transmitter (@thetransmitter.bsky.social) piece on our recent work on estrous cycle modulation of hippocampal structure and function. Thanks to Sydney Wyatt (@sydneywyatt.bsky.social) for covering the work and its context: www.thetransmitter.org/neuroendocri...

We had a great year of PhD graduations. Starting last December with Adrian Aleman Zapata on Learning-dependent cortico-hippocampal interactions during NonREM sleep, graduating with Cum Laude!

Wonderful to see this piece out! I really think we as a field are converging on a unified account of the hippocampus as a modality agnostic, task-relevant, sequence prediction machine. I bet that within the next decade we will have a complete computational model of the hippocampus. 🧠📈 🧪

Yayy check out the most exciting new memory lab!!! You want to go work with Brynn, trust me!!

🚨🚨Job Alert🚨🚨!! Neuroscience, Physiology and Pharmacology are recruiting a new lecturer/associate professor! an amazing opportunity to join our fantastic dept! @ucl.ac.uk @ucllifesciences.bsky.social @uclnpp.bsky.social post here: www.nature.com/naturecareer...

Thanks for the reminder @janemunday.bsky.social. Every summer, I repost this article DROWNING DOES NOT LOOK LIKE DROWNING. To date, I know of FOUR kids who were saved after someone who'd clicked on the link learnt how to spot actual drowning. Take time to read and pass on. slate.com/technology/2...

What is on your mind when you are about to fall asleep? Help us unravel the diverse ways humans experience this mysterious transition! Please share your unique experiences by filling up this short online questionnaire: redcap.link/DriftingMinds

We are hiring! 2 PhD position available on semi-naturalistic behavioral phenotyping and housing projects to increase translation. www.genzellab.com/we-are-hiring

Sleep strengthens successor representations of learned sequences https://www.biorxiv.org/content/10.1101/2025.06.11.658893v1

Excited for upcoming @fens.org regional meeting in Oslo! Don't miss the @fkne-scholars.bsky.social symposium: protein landscapes on circuit formation & aging across models!

Mouse retrosplenial cortex encodes spatial hypotheses with well-behaved recurrent dynamics, which can combine these hypotheses with incoming information to resolve ambiguities @jvoigts.bsky.social www.nature.com/articles/s41...

It's officially published!! In my main postdoc work with @markplitt.bsky.social and @lgiocomo.bsky.social, we found that the hippocampus simultaneously encodes an animal's spatial position and its experience relative to reward in parallel population codes. 🧵 www.nature.com/articles/s41...

Multiday imaging of CA1 neurons during learning reveals that the representation stabilizes as the number of readily retrievable, information-rich and stable place cells increases, and suggests novel mechanisms of hippocampal memory formation www.nature.com/articles/s41...