Vassilis Kehayas

Natural Philosopher

[Quanta Magazine @QuantaMagazine]

This is a microscopic view of apoptosis, the process by which cells violently self-terminate. Some evolutionary biologists suspect that this mechanism originated in the bacterial ancestors of mitochondria. https://t.co/TTdcP5pXBO

[Hadi Vafaii @hadivafaii]

Ever wondered how closely #fMRI brain networks reflect a neural underpinning❓

We address this using simultaneous fMRI & widefield Ca²⁺ imaging in mice, and the answer is… complicated!

👉🧵[1/n]

Jointly supervised by @EvelynMRLake & @PessoaBrain

https://t.co/VSE1q0AR7N

[LoogerLab @LoogerL]

Dear science world, I need help, please. If you like the tools and data we generate, and our shareware attitude, can you please co-apply for funding with us? It turns out that I'm terrible at writing grants, and we need $$ or else we can't make more GCaMPs, RCaMPs,

1/

[Céline Dürst @CelineDurst]

📢Job alert! I am starting my own research subgroup thanks to @snsf_ch #Ambizione at the Department of Basic Neurosciences of the University of Geneva @NeuroGeneva. PhD position available, co-supervised by myself and Prof. Anthony Holtmaat. See the add below and share. Thanks!

[Michael Levin @drmichaellevin]

A fragment of a GPT4-written dialog between 2 intestinal parasites. One is a reductionist and believes they live in a cold, mechanical universe with no agency. The other, a mystic, suspects that they live in a world which may have its own mind and goals. It named one "Red".

[Milton Pividori @miltondp]

Check out our preprint with @GreeneScientist on using @OpenAI's GPT-3 models to automatically revise and improve the text of a manuscript based on #Manubot (https://t.co/5klDumt3E1)

bioRxiv: https://t.co/Iyiu6veOZg

Manubot (HTML): https://t.co/NKUK3t2jfR

[Tyler Sloan @quorumetrix]

I’ve made this video as an intuition pump for the density of #synapses in the #brain. This volume ~ grain of sand, has >3.2 million synapses (orange cubes). Peeling them away leaves only inputs on 2 #neurons. Zooming in, we see the synapses localized to the dendritic spines.
#b3d

[eLife - the journal @eLife]

Today, we’re introducing a new model that eliminates accept/reject decisions.

By publishing every paper with eLife reviews as a Reviewed Preprint, we plan to restore autonomy to authors, ensuring that they will be judged by what, not where, they publish. https://t.co/OAsiOVFStI

[Tim Vogels @TPVogels]

Dear #neurotwitter, we dropped this onto @biorxiv_neursci for your perusal. It's an unusual piece from my lab & I really, really enjoyed working on it with @chc1987. Here it is: Metabolically spikes serve neuronal energy homeostasis (and protect neurons). https://t.co/muKt2jNPyG

[Maximilian Maier 🔍 @MaxMa1er]

🚨 New commentary in PNAS: "No evidence for nudging after adjusting for publication bias" with @BartosFra, T.D. Stanley, David Shanks, Adam J.L. Harris, and @EJWagenmakers
https://t.co/WP3dx33aiW

[Vassilis Kehayas @vkehayas]

A fantastic piece of work that shows how far-reaching insights we can derive from seemingly simple systems. Evolutionary regret helps shape adaptation to the fitness landscape.

[Vassilis Kehayas @vkehayas]

@stephane_pages Thanks, Stephane!

[Vassilis Kehayas @vkehayas]

I had the privilege to receive funding through a Marie Curie Individual Fellowship for my project "Brain Networks in Learning". Here is a short introduction to the project.

[Neurath's boat @neurathsboat]

Brain networks in learning https://t.co/vcNUyciHqq

[Vassilis Kehayas @vkehayas]

There is one obvious fact about the ONLY systems that we are SURE are sentient: their information processing involves active exploration of the environment with a meaty body and years of education in folk psychology.

[Kording Lab 🦖 @KordingLab]

There is one obvious fact about the ONLY systems that we are SURE are sentient: their information processing involves spikes: action potentials, ca2+ spikes, nmda spikes.

[Carmen Sandi @carmensandi10]

A call to ALL brain scientists @network_alba

Please, take this brief survey (till June 20) to help us understand IMPOSTER Phenomenon: https://t.co/hpTb7dmAq7

& join WEBINAR on June 27 – Info & registr:
https://t.co/cqU6hEJYqr
Supported by @FENSorg @ibroSecretariat @SfNtweets

[Neurath's boat @neurathsboat]

Epistemology naturalized https://t.co/IqP9JKsE1T

[Vassilis Kehayas @vkehayas]

@fchollet It once was "like a catapult".

[Communications Biology @CommsBio]

Employing advanced light+electron microscopy, @teuntoonenaug and co-workers identify a subset of cortical multipolar vasoactive intestinal peptide interneurons with high spine dynamics and characteristics that are greatly different from pyramidal neurons. https://t.co/Kapra6kxt8

[Vassilis Kehayas @vkehayas]

Potentially a major breakthrough towards understanding neural networks, the promise of "artificial intelligence", and modelling brain networks.

[Jason Kim @jason_z_kim]

From logical reasoning to mental simulation, recurrent neural networks (RNNs) possess an incredible capacity for computation. To fully harness this capacity, we developed a programming language for RNNs https://t.co/gqecBR1QNc. Here is a game of pong programmed inside of an RNN.

[Justin Ling (Has Left) @Justin_Ling]

Re-upping this very good resource to securely communicate — these will work even if internet service goes down.

If you know anyone in Ukraine, send them these resources: https://t.co/s2SQRlkU3Z