Aditya Krishna

Super excited to share that the first work from my PhD is out in @currentbiology.bsky.social www.cell.com/current-biol... We tackle two fundamental questions: 1) How does the brain create a cognitive map solely using auditory information? 2)How does the hippocampus represent a moving object?

Crows have brains “in the fast lane,” according to Andreas Nieder, who showed in a new study that they make perceptual decisions twice as fast as primates. #neuroskyence By @sarahthau.bsky.social www.thetransmitter.org/behavior/cro...

New preprint out (first from my new group!) 🚨 "Predictive Grid Cell Coding Does Not Require Explicit Planning" biorxiv.org/content/10.6... 1/

Now online! A high-dimensional population code in the bat motor cortex during natural dexterous flight

@currentbiology.bsky.social with another banger. Go to ~1:50 in the video

How do 🐁deal with complex landscapes? Turns out they learn a lot very quickly. We think they do this by learning a set of repeated sparse paths, which form a type of compressed world model. Joint work with the Hermundstad lab, led by Tzuhsuan Ma and Alison Comrie: www.biorxiv.org/content/10.6...

If you've ever wondered how the brain *really* keeps things in mind, come let Aaron, Nick & their colleagues in the Nagel lab tell you how the fly does it here: www.nature.com/articles/s41...

Great article by first authors @laurenb29.bsky.social & Will de Cothi: Subicular spatial codes arise from predictive mapping www.nature.com/articles/s41...

BREAKING NEWS The 2026 Nobel Prize in Physiology or Medicine has been awarded to Karl Deisseroth, Peter Hegemann and Georg Nagel “for their discoveries concerning light-gated ion channels and optogenetics.”

Today marks the 25th anniversary (😯) of our publication on discovery of FOXP2. To commemorate, I’ll repost a few prior threads about the gene. Here’s my explainer of how we tracked down FOXP2 & implicated it in speech/language deficits, in the days before completion of the human genome project.🗣️🧬🧪👇

🦋 Butterfly wing patterns create motion illusions that protect them from predators! Our new study (8 years in the making) is out in Nature today doi.org/10.1038/s415... @grahancock.bsky.social @esbriolat.bsky.social @scienceanna.bsky.social @lauraakelley.bsky.social @uniexecec.bsky.social

I'm excited to share our new preprint: Generation of a transgenic cephalopod tinyurl.com/pc86jxz8 Cephalopods (cuttlefish, octopus & squid) are crazy critters that dynamically camouflage to their surroundings by changing the color, pattern, & texture of their skin, which they control w their brain.

Our lab's latest paper on the neurobiology of collective behavior is now published www.nature.com/articles/s41... This is the work of a great team in the lab - led by Jo-Hsien Yu, with Geoff Meyerhof, Jimjohn Milan, and Julia Napoli @nature.com @danionella.bsky.social

WILD: a wireless device for studies of brain activity in freely moving animals under naturalistic conditions. www.nature.com/articles/s41...

🚨 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...

Hi friends & colleagues! I’m on the hunt for a tenure-track home! I’m a BRAIN Initiative K99/R00 scholar studying learning & memory at the intersection of experimental neuroscience, theory, & machine learning/AI. I’d love to connect & would appreciate help spreading the word! web.mit.edu/hsw/www/

Now out in Hippocampus!! 📣💥 We examined anatomical inputs to the hippocampal region in six species - the tenrec, rat, marmoset, cat, macaque, and human - and found that hippocampal processing operates on fundamentally different types of information across species! (1/3) dx.doi.org/10.1002/hipo...

How fast can mice learn complex mazes? With @mameister4.bsky.social we reveal memory, generalization, latent learning, and remote credit assignment of mice in the Manhattan Maze. Do mice born without a cortex or hippocampus have them too? Check it out! www.biorxiv.org/content/10.6...

Textbook: tracking position during navigation is primarily the job of the hippocampus. Recent findings suggest a more complicated story. Recording >20k neurons brainwide, we indeed find spatial representations in every region! With @kenneth-harris.bsky.social and @carandinilab.net

I’m very excited to share our new paper, led by the very talented Jack Bowler, a postdoc in the lab! www.nature.com/articles/s41... We all know that the way we learn something matters. But how does a training curriculum actually shape how the brain learns to solve a problem? a 🧵 1/N

Fantastic new work from Nikita Finger in the lab, investigating sensory conflict in Egyptian fruit bats by fitting them with prisms!!

Beautiful comparative study on the active sensing strategies employed by Rousettus aegyptiacus and Carollia perspicillata that were navigating in a "L" shaped corridor🦇. Sonar gaze reliably anticipated the direction of subsequent heading changes in both species. link.springer.com/article/10.1...

Now in Science: How does the brain’s navigation system allocate its limited representational resources during behavior? We found that grid cells sweep toward locations of interest, providing a potential mechanism for allocating spatial attention in the cognitive map.🧵 science.org/doi/10.1126/...

Aditya Krishna speaks about "Predictive coding of moving objects in the #bat #hippocampus" 🦇🧠 #ICN2026

Our new paper is out in @nature.com! We uncovered how a naked mole-rat queen 👑 controls an entire colony: a natural contraceptive scent that suppresses reproduction in other females! A remarkable mammalian parallel to bees and ants! 🐝🐜 @garyrlewin.bsky.social youtu.be/enfv3zJrWKM?...

Our work on goal-directed theta sweeps is out! We found two different types of theta sweeps in the rat hippocampus. During random foraging, left-right alternating sweeps dominated (Vollan, 25). However, during memory-guided navigation sweeps pointing to hidden goal locations emerged with learning.

Fresh off the press! Jeongeun and Yoël’s work on the lightning-fast actuation of the Venus flytrap. 🪴⚡ No muscles. No nerves. So what powers the trap? Cutting the trap suppresses its mechanical amplifier, the snap-through instability, and reveals the active motion. www.science.org/doi/10.1126/...

A Two-Dimensional Grid-Cell Code for Three-Dimensional Navigation in Freely Flying Bats https://www.biorxiv.org/content/10.64898/2026.06.10.728358v1

New paper from Ulanovsky's group: With brain recordings from🦇 flying in a 200m tunnel, the group discovered that place cells of CA1 exhibit dense spatial coding, i.e., multiple place fields, and cells of CA3 exhibit ultrasparse coding, i.e., one place field. www.nature.com/articles/s41...

How does #vision shape spatial maps in the hippocampus? Check out our brand new preprint 👇 As someone who did a PhD on the #hippocampus & postdoc on visual cortex and superior colliculus, it's such a joy to start closing the loop - especially with such a great team! 😊

Where, exactly, does learning happen in the brain? Out today in @nature.com, we identify a synaptic locus of birdsong learning and show that the circuit can be tuned to make birds learn faster - but at a cost. Read on👇 #neuroskyence 🧪 #prattle 💬 #bioacoustics Shareable link: rdcu.be/fiyrS

Rethinking hierarchy: the auditory system as an integrated cortical–subcortical network www.nature.com/articles/s41...

Really excited to see this in print!

Preprint alert! We've done the first ever wireless brain recordings from the high-level visual & motor regions (IT/PMv/PFC) in monkeys engaged in natural behaviors as well as during controlled screen-based tasks. Read below for a lay summary and the link for details! 1/8

Very excited to announce the first preprint from the lab @ucsantabarbara.bsky.social -- "Predictive pursuit emerges in high-dimensional RNNs." @wtredman.bsky.social (starting his own group at JHU this fall) summarizes the work nicely in this thread.

1/7 🧠 My journey into development begins with this work and question: how does the brain's spatial navigation system develop? We found that the neural networks for spatial navigation (tori and rings) are preconfigured and only later anchor gradually to the world with experience! 🧵

the human hippocampus receives convergent input from multiple sensory systems, yet we lack a basic understanding of how this structure integrates across senses. we tackle this problem in our new preprint! paper: doi.org/10.64898/202... w/ Aryan Agarwal, @yannanzhu.bsky.social, & Nick Turk-Browne

How can moths navigate for THOUSANDS of kilometres in the dark? Read more in this research article and related Insight article about moths called fall armyworms in @elife.bsky.social: elifesciences.org/reviewed-pre... elifesciences.org/articles/110... Image credit: David Hobern CC BY 2.0

New preprint out 🎉 What happens to the hippocampal “place code” when an animal is actively engaged in a task? The answer surprised us (and might surprise you too!). Let's dive in ⬇️ Link: "Hippocampal trace coding dominates and disrupts place coding" www.biorxiv.org/content/10.6...

A half-century old question may have its final answer. Using high-resolution #Mini2P microscopes, we find no evidence of local topography in #PlaceCells. Place fields of neighbouring cells are no more similar than those of randomly selected cells. 🧠🗺️ Out now in @pnas.org www.pnas.org/doi/10.1073/...

Thrilled to finally share this work! 🧠🔊 Using a new reinforcement-free task we show mice (like humans) extract abstract structure from sound (unsupervised) & dCA1 is causally required by building factorised, orthogonal subspaces of abstract rules. Led by Dammy Onih! www.biorxiv.org/content/10.6...

New paper alert! 🚨 We found that the brain's compass is remarkably stable at two scales 1️⃣ the system maintains its internal organization for weeks 2️⃣ It "remembers" its orientation for weeks, even after a single visit This may be key to how the brain aligns its other maps. Paper: rdcu.be/e3waP

I made a map of 3.4 million Bluesky users - see if you can find yourself! bluesky-map.theo.io I've seen some similar projects, but IMO this seems to better capture some of the fine-grained detail

Imagination in bonobos! I am thrilled to share a new paper w/ Amalia Bastos, out now in @science.org We provide the first experimental evidence that a nonhuman animal can follow along a pretend scenario & track imaginary objects. Work w/ Kanzi, the bonobo, at Ape Initiative youtu.be/NUSHcQQz2Ko

The hippocampal map has its own attentional control signal! Our new study reveals that theta #sweeps can be instantly biased towards behaviourally relevant locations. See 📹 in post 4/6 and preprint here 👉 www.biorxiv.org/content/10.6... 🧵(1/6)

Where does learning through imitation happen in the brain? In juvenile zebra finches, we pinpoint a synaptic locus of song learning in a cortico-basal ganglia circuit and leverage this localization to measure the timescale of consolidation and make birds learn faster! #neuroskyence (1/14)