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Runita Shirdhankar

@runitas.bsky.social
75 followers 182 following 0 posts

PhD candidate @mpinb.mpg.de‬ | Interested in understanding Navigation in the Subterranean World of Rodents

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Reposted by Runita Shirdhankar
bryan newbold @bnewbold.net · 07/10/2026
ah damn, RIP Margaret Hamilton. she took safety-critical software engineering seriously, and got people to the moon and back. news.mit.edu/2026/margare...
old photos of a woman (Margaret Hamilton) standing next to a tall stack of books (printouts of Apollo space mission software source code)
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Cell Reports Methods @cp-cellrepmethods.bsky.social · 01/10/2026
In vivo electrophysiology in head-fixed and freely moving mole-rats
dlvr.it
In vivo electrophysiology in head-fixed and freely moving mole-rats
Shirdhankar et al. establish a method to record from single neurons in the brain of African mole-rats while they are head-fixed or freely moving, performing natural behaviors. The method allows the study of sensory perception and neural adaptations of these strictly subterranean rodents, well known for their longevity, cancer resistance, and magnetic sense.
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MagBBB Research Group @magbbbgroup.bsky.social · 27/09/2026
#NavigationNews A new and interesting study on magnetoreception in mammals. www.cell.com/iscience/ful...
cell.com
Multimodal imaging reveals no evidence for magnetite-based magnetoreceptors in the mole-rat eye
Neuroscience; Molecular neuroscience; Systems neuroscience; Sensory neuroscience
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Enny van Beest @ennyvb.bsky.social · 04/09/2026
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
Brainwide representations of a virtual corridor
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Mohammed Khallaf @khallaf.bsky.social · 21/08/2026
How do you recognize who’s who when you live mostly in the dark? 👂👃✋ Our review explores how naked mole-rats use sound, smell, and touch to maintain their remarkable social organization! www.sciencedirect.com/science/arti... @garyrlewin.bsky.social, Firdevs Murad, Wenhan Luo, Alison Barker
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Kai Caspar @nomascus.bsky.social · 07/08/2026
Excellent sketch of a naked mole-rat from Weber's "Die Säugetiere"(2nd edition, 1928), showing why the name is actually a misnomer: The body is covered in sensory hairs, crucial for picking up tactile cues for orientation. 🧪
Stylized sketch of a naked mole-rat highlighting the many sensory hairs covering the whole body
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Quanta Magazine @quantamagazine.org · 06/08/2026
What can the touch-obsessed naked mole rat tell us about social connection, and even pleasure? In this week’s The Joy of Why podcast, @jannalevinastro.bsky.social sits down with neuroscientist Ishmail Abdus-Saboor to discuss the science behind these sensations. podcasts.apple.com/us/podcast/h...
podcasts.apple.com
How Does Touch Lead To Pain Or Pleasure?
Podcast Episode · The Joy of Why · August 6 · 55m
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Abraham Zelalem Vollan @azvollan.bsky.social · 06/08/2026
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/...
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Kate Jeffery @katejj.bsky.social · 24/07/2026
Happy to say our head-direction-cell-in-3D is finally out! doi.org/10.1038/s420... Confirms that the brain's compass uses a dual-axis rule (like an iphone does) to maintain a constant estimate of horizontal heading even when the head is not horizontal. Blogpost explanation here: shorturl.at/9VdGM
communities.springernature.com
How the brain adapts its 2D compass for a 3D world
The brain’s neural compass seems 2D, detecting only left and right head-turns. However, if the head is tilted in 3D, its rotation around the vertical axis also covertly changes its horizontal facing ...
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Quanta Magazine @quantamagazine.org · 23/07/2026
Last year, Hong Wang and Joshua Zahl presented a 127-page inductive argument proving the three-dimensional Kakeya set conjecture. For Wang, there was no celebration. Only more questions. Now Wang has won the Fields Medal. www.quantamagazine.org/hong-wang-wi...
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Mohammed Khallaf @khallaf.bsky.social · 15/07/2026
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?...
youtu.be
Naked mole-rats are ruled by a queen: this chemical puts her in power
YouTube video by nature video
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Neil Burgess @neilburgess10.bsky.social · 01/07/2026
Ever wondered how the hippocampal cognitive map is read-out? @changmin-yu.bsky.social @zilong-ji.bsky.social with Jake & John, show that, during navigation, theta sweeps indicate remembered goal-directions (cf. current/next movements or perceptual targets) 1/2 www.nature.com/articles/s41...
Decoded locations from place cell firing sweep towards a remembered goal location during each theta cycle irrespective of the current movement or head direction
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Reposted by Runita Shirdhankar
International Society for Neuroethology @neuroethology.org · 28/05/2026
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...
nature.com
Sparse-to-dense coding transformation between hippocampal areas CA3 and CA1 - Nature
The hippocampus exhibits a CA3-to-CA1 coding transformation that combines fast learning with an efficient, compressed neural code.
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Max Planck Institute of Animal Behavior @mpi-animalbehav.bsky.social · 03/05/2026
Our second ICARUS system is in space 🚀🛰️ At 9am PT, a Falcon 9 rocket left Earth from California, taking an ICARUS payload with it. This is the beginning of ICARUS 2.0—independent, robust, real-time—with more ICARUS satellites to come. Read more▶️https://tinyurl.com/mw48c398 📸 Space X, EnduroSat
Credit: Space XCredit EnduroSat
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International Society for Neuroethology @neuroethology.org · 18/04/2026
🚨New book out on the "Challenges in #Navigation Research -Mapping New Directions" edited by @noranewcombe.bsky.social and Ken Cheng 🧭🗺🧠 It presents a multidisciplinary synthesis of research on animal navigation. Check ot out, it is open access ↘️ doi.org/10.1007/978-... ↙️
doi.org
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Kate Jeffery @katejj.bsky.social · 21/04/2026
Job alert! We are seeking a rodent in vivo electrophysiologist to work on coordination between anterior thalamus and hippocampus in rats using Neuropixels. Beautiful Scotland, leading university (Glasgow) and vibrant intellectual setting. Post is 23 months but hopefully extensible. Details here 👇
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Saikat Ray @ray-neuro.bsky.social · 11/04/2026
How do social netowrks form and evolve? We looked at a bunch of bats to explore this! doi.org/10.1111/nyas...
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Emily A. Aery Jones @emilyaeryjones.bsky.social · 01/04/2026
My main postdoc work is now published: www.nature.com/articles/s41...! We (myself, Isabel Low, Frances Cho, and @lgiocomo.bsky.social) discovered task-relevant remote representations in entorhinal cortex independent of CA1. #paperthread below! 1/13
nature.com
Entorhinal cortex represents task-relevant remote locations independently of CA1 - Nature Neuroscience
Neurons in medial entorhinal cortex collectively represent discrete nonlocal positions during immobility. During this nonlocal coding, CA1 is uncoupled from entorhinal cortex. These representations ar...
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Simon Fisher @profsimonfisher.bsky.social · 24/03/2026
“I shall send off the manuscript today or Monday. It is an extremely poor affair; I must say something & have nothing worth saying. Lock it up carefully, I hate it to that extent it would break my heart to write it again.” Charles Darwin captures the joy of academia in a letter to his daughter, 1871
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Edvard I Moser @edvardmoser.bsky.social · 28/01/2026
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)
biorxiv.org
Attention-like regulation of theta sweeps in the brain's spatial navigation circuit
Spatial attention supports navigation by prioritizing information from selected locations. A candidate neural mechanism is provided by theta-paced sweeps in grid- and place-cell population activity, which sample nearby space in a left-right-alternating pattern coordinated by parasubicular direction signals. During exploration, this alternation promotes uniform spatial coverage, but whether sweeps can be flexibly tuned to locations of particular interest remains unclear. Using large-scale Neuropixels recordings in freely-behaving rats, we show that sweeps and direction signals are rapidly and dynamically modulated: they track moving targets during pursuit, precede orienting responses during immobility, and reverse during backward locomotion — without prior spatial learning. Similar modulation occurs during REM sleep. Canonical head-direction signals remain head-aligned. These findings identify sweeps as a flexible, attention-like mechanism for selectively sampling allocentric cognitive maps. ### Competing Interest Statement The authors have declared no competing interest. European Research Council, Synergy Grant 951319 (EIM) The Research Council of Norway, Centre of Neural Computation 223262 (EIM, MBM), Centre for Algorithms in the Cortex 332640 (EIM, MBM), National Infrastructure grant (NORBRAIN, 295721 and 350201) The Kavli Foundation, https://ror.org/00kztt736 Ministry of Science and Education, Norway (EIM, MBM) Faculty of Medicine and Health Sciences; NTNU, Norway (AZV)
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Sabine Begall @sabinebegall.bsky.social · 08/01/2026
New paper out in G3 @genetics-gsa.bsky.social academic.oup.com/g3journal/ar... We (@dkfz.bsky.social) present the first genome assembly of Ansell's mole-rat (Fukomys anselli) bringing it one step closer to becoming a model species. Ansell's mole-rat is long-lived, cancer resistant and highly social.
academic.oup.com
De novo genome assembly of Ansell's mole-rat (Fukomys anselli)
Abstract. Ansell's mole-rat (Fukomys anselli) is an African rodent known for its subterranean lifestyle and unique phenotypic traits, including extreme lon
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Reposted by Runita Shirdhankar
Malkemper-Lab @malkemper-lab.bsky.social · 18/12/2025
Our new preprint is now live on bioRxiv: www.biorxiv.org/content/10.6... We established neuronal recordings in freely moving subterranean mammals, enabling functional studies of brains in extreme ecological niches. 🚀 #neuroscience #molerats #neuropixels
biorxiv.org
Neuronal recordings in head-fixed and freely-moving mole-rats
Mole-rats are subterranean rodents that have evolved remarkable sensory adaptations to life in underground tunnel systems, yet their neural mechanisms remain largely unexplored. Here, we present a pro...
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Sabine Begall @sabinebegall.bsky.social · 20/11/2025
New paper out in Mammalian Biology: Walking backwards, as impractical as it may seem, is mastered by the Ansell's mole-rat (Fukomys anselli). In this study, we showed that mole-rats can walk backwards and forwards with equal ease. This is likely an adaptation to their subterranean habitat.
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Shaked Palgi @shakedpa.bsky.social · 16/10/2025
I am excited to share my PhD work on head-direction cells recorded in the wild, now published in @science.org, where we recorded neurons in bats flying outdoors on an island. doi.org/10.1126/sci... With @ray-neuro.bsky.social, Shir Maimon, Liora Las, Nachum Ulanovsky and many others
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Nature @nature.com · 06/10/2025
Obituary: Jane Goodall (1934-2025) Pioneer primatologist who inspired generations of scientists go.nature.com/48aWjRU
go.nature.com
Jane Goodall obituary: pioneer primatologist who inspired generations of scientists
She was a tireless advocate for conservation, the welfare of captive chimpanzees and the protection of habitats.
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clykken.bsky.social @clykken.bsky.social · 25/09/2025
1/8 How can the brain create countless unique memories using a single, universal metric of space? We’ve been waiting for the answer to this for two decades! Read it here: www.biorxiv.org/content/10.1...
biorxiv.org
Functional independence of entorhinal grid cell modules enables remapping in hippocampal place cells
A systems-level understanding of cortical computation requires insight into how neural codes are transformed across distinct brain circuits. In the mammalian cortex, one of the few systems where such ...
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bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 17/09/2025
Head direction cells use a head-referenced dual-axis updating rule in 3D space www.biorxiv.org/content/10.1101/202…
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Abhilasha Joshi, PhD @rhythmicspikes.bsky.social · 17/09/2025
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
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