Jon Rueckemann

Jon Rueckemann

@jonrueckemann.bsky.social

Neuroscientist. Ensemble dynamics and rhythmic states of the hippocampus. Comparative physiologist; primates and rodents. UW

1.2K followers652 following19 posts

Jon Rueckemann reposted

Steve Ramirez
@okaysteve.bsky.social

🚨 new work from the lab! "Hippocampal astrocytic sequences emerge during learning and memory recall" by @ryguy.io & @rsuthard.bsky.social thank you to the entire team for your camaraderie and for muscling through science together 🧠 -- we welcome all feedback! nature.com/articles/s41...

nature.comHippocampal astrocytic sequences emerge during learning and memory recallNature Neuroscience - Senne, Suthard and colleagues show that dorsal hippocampal astrocytes display time-compressed calcium-event sequences after foot shock and upon context re-exposure, and that...

Jon Rueckemann reposted

The Transmitter
@thetransmitter.bsky.social

In this episode of @braininspired.bsky.social, @dlevenstein.bsky.social explains how internally generated brain activity during sleep shapes our cognition, and why NeuroAI is such a powerful approach to understanding our brains. #neuroskyence www.thetransmitter.org/brain-inspir...

thetransmitter.orgWhat’s the role of spontaneous neural activity during sleep?Daniel Levenstein explains how internally generated brain activity during sleep shapes our cognition, and why NeuroAI is such a powerful approach.

Jon Rueckemann reposted

Paul Rainey
@paulbrainey.bsky.social

One faculty ad, 200 applicants, 600 papers before the first shortlist. Nobody can read that, so metrics do the reducing — and slowly a committee stops reading at all. An essay on what we lose when judgement is handed to citation counts and h-indices. 🧵 academicrenewal.substack.com/p/when-acade...

academicrenewal.substack.comWhen academics stop readingMetrics can help decide where to look, but they turn dangerous when they replace contact with the work itself.
Jon Rueckemann
@jonrueckemann.bsky.social

Couldn’t agree more. And where systems-level differences exist across species, we are gifted a natural manipulation that can point to critical circuit elements/mechanisms

Nicole Rust@nicolecrust.bsky.social

We thus need to expedite our asssessment of when & how nonhuman animal data is relevant, & cross species divides need to be reconciled ASAP. I do agree that these evaluations should not be made with limited evidence - but when it requires more data, we need to prioritize acquiring it.

Jon Rueckemann reposted

Roddy Grieves
@roddy-grieves.bsky.social

Can humans & animals really use internal maps to take shortcuts? Tolman famously said yes - based largely on his Sunburst maze. Our new review & meta-analysis suggests evidence is far weaker than you might think. 🧵👇 doi.org/10.1111/ejn.... @uofgpsychneuro.bsky.social @ejneuroscience.bsky.social

doi.orgTolman's Sunburst Maze 80 Years on: A Meta‐Analysis Reveals Poor Replicability and Little Evidence for ShortcuttingIn 1946, Tolman et al. reported that rats could take a novel shortcut to a goal after training on an indirect route, supporting the Cognitive Map theory. However, a review of subsequent Sunburst maze...
Jon Rueckemann
@jonrueckemann.bsky.social

Our new preprint: The primate hippocampus parses experience into event-aligned neural states, creating a temporal scaffold for organizing behavior. At #SfN25 ? Come chat at my poster — Wednesday AM (PP14; 414.03).

bioRxiv Neuroscience@biorxiv-neursci.bsky.social

The Primate Hippocampus Constructs a Temporal Scaffold Anchored to Behavioral Events https://www.biorxiv.org/content/10.1101/2025.11.12.687961v1

Jon Rueckemann reposted

Nancy Kanwisher
@nancykanwisher.bsky.social

Yup, this happened to me: grant submitted in September, study section that should have discussed it in February was delayed until late March, then grant was withdrawn by NIH 3 days before the study section met because of lack of this document. I lost almost a year. Don't let this happen to you!

NIH Vigils@nihvigils.bsky.social

NIH APPLICANTS: Your application will be WITHDRAWN BEFORE REVIEW if you have an international collaboration and do not include a Foreign Justification. Normally this could be provided after review as JIT but NOT ANYMORE. You have been warned.

Jon Rueckemann reposted

Mari Sosa
@marisosa.bsky.social

Exciting news!! I’m joining the tenure-track faculty at University of Colorado Boulder this fall as an Assistant Professor of Psychology & Neuroscience! The Sosa Lab will study how memory is shaped by cognitive and physiological demands, including during pregnancy and the postpartum period. 🧵

Jon Rueckemann reposted

Ipshita Zutshi
@ipshitaz.bsky.social

It’s an incredible feeling to see something you’ve poured your heart into come to life. This work was born from my curiosity about hippocampal “cognitive tuning.” Our interpretation of the environment depends on our actions, constantly evolving as we pursue our goals www.nature.com/articles/s41...

nature.comHippocampal neuronal activity is aligned with action plans - NatureUsing high-density electrophysiological recordings, how internally generated cell assemblies are updated by action plans to meet external goals is explored.

Jon Rueckemann reposted

Bradley Love
@profdata.bsky.social

"The inevitability and superfluousness of cell types in spatial cognition" w Ken Luo @robmok.bsky.social Whether place, border, head direction, Jennifer Aniston, or whatever cells, are we fooling ourselves? Are these intuitive findings scientific discoveries? 1/6 www.biorxiv.org/content/10.1...

biorxiv.orgThe inevitability and superfluousness of cell types in spatial cognitionbioRxiv - the preprint server for biology, operated by Cold Spring Harbor Laboratory, a research and educational institution

Jon Rueckemann reposted

Richard Gao
@rdgao.bsky.social

"exhaust fumes" made it into the official abstract! hence completing the journey from an epiphenomenal shitpost blog to a full-blown review paper. all thanks to this cast of co-authors (esp. Sander), our TICS editor Lindsey Drayton, and two very engaged reviewers (@danielemarinazzo.bsky.social)

Sander van Bree@sandervanbree.bsky.social

Our review on the theoretical status of oscillations and field potentials is out! What are their effects, and what can electrophysiology signals reveal about how the brain works? w/ @dlevenstein.bsky.social @prokraustinator.bsky.social Bradley Voytek @rdgao.bsky.social www.cell.com/trends/cogni...

cell.comProcesses and measurements: a framework for understanding neural oscillations in field potentialsVarious neuroscientific theories maintain that brain oscillations are important for neuronal computation, but opposing views claim that these macroscale dynamics are ‘exhaust fumes’ of more relevant processes. Here, we approach the question of whether oscillations are functional or epiphenomenal by distinguishing between measurements and processes, and by reviewing whether causal or inferentially useful links exist between field potentials, electric fields, and neurobiological events. We introduce a vocabulary for the role of brain signals and their underlying processes, demarcating oscillations as a distinct entity where both processes and measurements can exhibit periodicity. Leveraging this distinction, we suggest that electric fields, oscillating or not, are causally and computationally relevant, and that field potential signals can carry information even without causality.

Jon Rueckemann reposted

Mohamady El-Gaby
@melgaby.bsky.social

What do you get if you ask a recurrent network (like the PFC or Entorhinal cortex) to generalise a transition structure? Turns out different things depending on how intimate they are with an external memory (like Hippocampus). Elegant theory led by @jcrwhittington.bsky.social

Surya Ganguli@suryaganguli.bsky.social

Stellar new work lead by the inimitable James Whittington in Neuron that develops a new theory unifying episodic and working memory and explains diverse hippocampal and prefrontal data: www.cell.com/neuron/fullt... w/Will Dorrell, @behrenstimb.bsky.social Mohamedy El Gaby

cell.comA tale of two algorithms: Structured slots explain prefrontal sequence memory and are unified with hippocampal cognitive mapsThe algorithm of the prefrontal working memory system on sequence memory tasks is not well understood, whereas it is well understood for the hippocampal episodic memory system. This work shows a mathematical duality between working and episodic sequence memory. This leads to a computational understanding of sequence working memory—as structured activity slots. This theory algorithmically explains recurrent neural network (RNN) and prefrontal representations during sequence memory tasks.
Jon Rueckemann
@jonrueckemann.bsky.social

This list has doubled. Who haven’t I found?

Jon Rueckemann@jonrueckemann.bsky.social

go.bsky.app/LdtUYZS I created a starter pack for the growing community of hippocampus physiologists that have joined the great migration. Also included the physiology-adjacent. Tell me who I haven’t found yet

Jon Rueckemann reposted

Nick Steinmetz
@steinmetzneuro.bsky.social

Have you wondered whether fast spatiotemporal brain dynamics like traveling waves are local, confined to just one region, or whether they are shared across many regions simultaneously? The latest work from Zhiwen Ye in my lab has the answer! Thread- www.biorxiv.org/content/10.1...

biorxiv.orgBrain-wide topographic coordination of traveling spiral wavesbioRxiv - the preprint server for biology, operated by Cold Spring Harbor Laboratory, a research and educational institution

You are up to date.