Lightnews — Scholar-powered news

Reposted by Maximilian E. Kirschhock

Giorgio Vallortigara @gvallortigara.bsky.social · 2d

Our paper on #number discrimination in #Danionella is out #zebrafish #numbersense #number_sense #number
@mirkuz12
#scott_fraser
cell.com/iscience/ful...

Numerical discrimination in Danionella

The transparent teleost Danionella cerebrum offers unique advantages for neuroscience research, including small size, lifelong cranial transparency, and a simplified brain. Despite its suitability for...

cell.com

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Reposted by Maximilian E. Kirschhock

Felix W. Moll @mollfw.bsky.social · 27d

New paper on precise tool use learning in carrion crows @currentbiology.bsky.social. We show that—like New Caledonian crows—expert carrion crows pay close attention to the working end of their tool, suggesting tool integration into their peripersonal space. 🧵 & vids! 👇

www.cell.com/current-biol...

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Maximilian E. Kirschhock @crowbrain.bsky.social · 28d

Congratulations @mollfw.bsky.social on this cool paper!

Gregory Kohn @kohngregory.bsky.social · 28d

Really interesting study showing learning of tool use in carrion crows! www.cell.com/current-biol...

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Reposted by Maximilian E. Kirschhock

Millie Johnston @milliejohnston.bsky.social · 28d

I'm delighted to share that, together with @crowbrain.bsky.social our paper on time estimation in crows is now published in @natcomms.nature.com

We found that crows not only keep track of time, but individual neurons prefer different time durations 🐦⏱️🧠

Check it out:
www.nature.com/articles/s41...

A neuronal correlate for time interval estimation in the crow’s telencephalon - Nature Communications

It is unknown how birds estimate time using brains organized differently from mammals. Here, the authors show that neurons in the crow NCL encode duration categories, supporting abstract, cue-independ...

www.nature.com

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Maximilian E. Kirschhock @crowbrain.bsky.social · 28d

I'm usually not very active here, but good news:
Together with @milliejohnston.bsky.social, our paper on time estimation in #crows got published in @natcomms.nature.com today!
We found crow neurons track time like a stopwatch — without a cortex! 🐦⏱️🧠
#SciComm #Science 🧪
www.nature.com/articles/s41...

A neuronal correlate for time interval estimation in the crow’s telencephalon - Nature Communications

It is unknown how birds estimate time using brains organized differently from mammals. Here, the authors show that neurons in the crow NCL encode duration categories, supporting abstract, cue-independ...

www.nature.com

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Reposted by Maximilian E. Kirschhock

The Conversation AUNZ @aunz.theconversation.com · Sep 9

Without urgent action, a species that helps hold rainforests together might be gone for good.

👉 Read the full story: theconversation.com/yes-spe...

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Reposted by Maximilian E. Kirschhock

Jerome Beetz @beetzjerome.bsky.social · Aug 14

We know how visual objects influence spatial tuning in the hippocampus. A new study from @batwoman123.bsky.social shows that auditory objects can be egocentrically or allocentrically encoded in the hippocampus of echolocating bats 🦇.
www.sciencedirect.com/science/arti...
@currentbiology.bsky.social

Auditory object representation in the bat hippocampus

Cognitive maps enable the flexible selection of navigation paths. Acoustic cognitive maps, constructed from the spatial layout of sonar auditory objec…

www.sciencedirect.com

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Reposted by Maximilian E. Kirschhock

Cell - a Cell Press journal @cp-cell.bsky.social · Jul 24

The new issue is out👉https://www.cell.com/cell/current
⁠
On the cover, Eliav et al. reveal that hippocampal replays in bats flying in very large, naturalistic environments were highly fragmented and short, depicting trajectories covering only a small portion of the environment size.

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Reposted by Maximilian E. Kirschhock

Tamir Eliav @tamir-eliav.bsky.social · Jun 14

🚨New in @cellpress.bsky.social
We discovered that hippocampal replays in natural-scale environments are highly fragmented, not full-length.
doi.org/10.1016/j.ce...
👇🧵

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Maximilian E. Kirschhock @crowbrain.bsky.social · Apr 15

I second everything @shakedpa.bsky.social said (though I'm also biased of course 😃)

@mitpress.bsky.social
#neuroscience #naturalneuroscience #science 🧪

Shaked Palgi @shakedpa.bsky.social · Apr 15

Since Nachum Ulanovsky is not on social media, I'm on PR duty today ;)

Nachum wrote a book titled "Natural Neuroscience"!
I am biased of course, but I think it's very relevant to whoever cares about the brain and about how we study it, from undergrads to professors.
mitpress.mit.edu/978026204499...

Natural Neuroscience

Natural neuroscience departs from the classical reductionist approach, which emphasizes control at the expense of natural behaviors, by proposing a shift tow...

mitpress.mit.edu

Reposted by Maximilian E. Kirschhock

CLaE @claeneuro.bsky.social · Jan 27

Nature Communications

Allocentric and egocentric spatial representations coexist in rodent medial entorhinal cortex

www.nature.com/articles/s41...

Allocentric and egocentric spatial representations coexist in rodent medial entorhinal cortex - Nature Communications

Successful navigation relies on reciprocal transformation between different reference frames. Here the authors report egocentric representations of the angle and distance to the boundaries and center ...

www.nature.com

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Reposted by Maximilian E. Kirschhock

Brad Hulse @bradkhulse.bsky.social · Jan 15

Happy head direction cell day y’all!

On this day, 41 years ago, Jim Ranck recorded the first “HD cell” in his Brooklyn lab in 1984.

Jim shared the news with the world at SFN that year, showing a video of the cell’s firing on a TV he somehow acquired and brought to his poster… (1/3)

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Reposted by Maximilian E. Kirschhock

Earl K. Miller @earlkmiller.bsky.social · Jan 9

We value things differently depending on the situation. A fascinating paper shows that the hippocampus feeds contextual information to the prefrontal cortex by altering theta wave phase alignment, enabling the PFC to adjust value judgments accordingly.
www.nature.com/articles/s41...
#neuroscience

Context-dependent decision-making in the primate hippocampal–prefrontal circuit - Nature Neuroscience

The brain uses different valuation schemes across contexts. Elston and Wallis show this is supported by hippocampal encoding of context that is broadcast to prefrontal value subcircuits via theta sync...

www.nature.com

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Reposted by Maximilian E. Kirschhock

Andrew Iwaniuk @evoneuro.bsky.social · Dec 17

New paper today!

We show that homing pigeons do not have an enlarged hippocampus when compared with other pigeons. They do, however, have higher hippocampal neuronal density and this could be important for navigation.
#neuroskyence #ornithology #anatomy

link.springer.com/article/10.1...

The quantitative anatomy of the hippocampal formation in homing pigeons and other pigeon breeds: implications for spatial cognition - Brain Structure and Function

Artificial selection for specific behavioural and physical traits in domesticated animals has resulted in a wide variety of breeds. One of the most widely recognized examples of behavioural selection ...

link.springer.com

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Maximilian E. Kirschhock @crowbrain.bsky.social · Dec 13

Sharing as my personal bookmark - feel free to let me know your thoughts if you('ve) read it 😁

CLaE @claeneuro.bsky.social · Dec 13

Nature Reviews Neuroscience

Multi-timescale neural dynamics for multisensory integration

#Neuroscience

www.nature.com/articles/s41...

Multi-timescale neural dynamics for multisensory integration - Nature Reviews Neuroscience

How the brain routinely processes information from different sensory modalities during everyday tasks is not well understood. In this Perspective, Engel and Senkowski propose how oscillatory neural me...

www.nature.com

Maximilian E. Kirschhock @crowbrain.bsky.social · Dec 5

I trained #crows to (kind of) "count" up to 5. Different neurons take over every step of the counting process, from recognising the #number to producing it. 🧪🧠🐦‍⬛

www.nature.com/articles/s41...

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Maximilian E. Kirschhock @crowbrain.bsky.social · Dec 4

#NeuralRecordings in butterflies?! Very excited to give this a read (& and a share) 🤩

Jerome Beetz @beetzjerome.bsky.social · Dec 4

With neural/tetrode recordings from behaving monarch butterflies, we revealed how goal and compass information are processed in the insect brain.
www.nature.com/articles/s41...

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Reposted by Maximilian E. Kirschhock

Saikat Ray @ray-neuro.bsky.social · Dec 4

Our work on neural recordings in flying bats on an island.

@shakedpa.bsky.social is a great speaker and it's fun work!
🦇🧠🧪

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Reposted by Maximilian E. Kirschhock

sinan malik @sinanmalik.bsky.social · Nov 8

Zebrafish can sense numbers! 🔢🐟

In my first preLight post, I have highlighted the work from Peter Luu & colleagues revealing early emergence of number-selective neurons in larval zebrafish. #preprint #companyofbiologist #zebrafishologist

Take a look! ⬇️ 👀

prelights.biologists.com/highlights/n...

Neural Basis of Number Sense in Larval Zebrafish - preLights

Zebrafish can sense numbers! This preprint reveals early emergence of number-selective neurons in larval zebrafish

prelights.biologists.com

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Maximilian E. Kirschhock @crowbrain.bsky.social · Dec 1

Can you add me also? I'm doing electrophysiology in bats (and previously in crows). Thanks!

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Reposted by Maximilian E. Kirschhock

Nacho Sanguinetti @neuroetho.bsky.social · Nov 24

Just In case people need to follow people in neuroscience focused on natural behaviors and the brains of cool non-trad animals! Please join let me know if you wanna be added. go.bsky.app/AcLpM4h

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Maximilian E. Kirschhock @crowbrain.bsky.social · Nov 25

Ahh I wanted to suggest @ray-neuro.bsky.social for this list, but he's already there. Let me join my colleagues? 🦇

Maximilian E. Kirschhock @crowbrain.bsky.social · Nov 22

Interesting 🤔

Beran, M.J., Englund, M.D., Haseltine, E.L. et al. Monkeys overestimate connected arrays in a relative quantity task: A reverse connectedness illusion. Atten Percept Psychophys (2024). doi.org/10.3758/s134...

Monkeys overestimate connected arrays in a relative quantity task: A reverse connectedness illusion - Attention, Perception, & Psychophysics

Humans and many other species show consistent patterns of responding when making relative quantity (“more or less”) judgments of stimuli. This includes the well-established ratio effect that determine...

link.springer.com

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Maximilian E. Kirschhock @crowbrain.bsky.social · Nov 21

I do like all those things, and particularly the animation 👏

Aitor Morales-Gregorio @aitormg.bsky.social · Nov 20

If you are interested in neural manifolds, dimensionality, brain states, and/or top-down modulation you are gonna like this one! 🧠🙈💫🧪

"Neural manifolds in V1 change with top-down signals from V4 targeting the foveal region" doi.org/10.1016/j.ce...

Also enjoy this animation :) #SciArt #neuroskyence

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Maximilian E. Kirschhock @crowbrain.bsky.social · Nov 18

Thanks a lot :)