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human neurons

2 captures, most recent first.

Ido Aizenbud @IdoAizenbud

reposted by "davinci"

[repost indicator] davinci reposted Ido Aizenbud (@IdoAizenbud) — Jul 9 Replying to @IdoAizenbud By disentangling morphological and synaptic contributions, we find that human neurons are not just scaled-up rat neurons. Instead, dendritic architecture and NMDA nonlinearities jointly make human neurons more functionally complex, setting them apart from rat neurons. (7/13) [Embedded chart, panel "E":] Title: (panel E, part of a larger figure) Y-axis: "Functional Complexity Index" (0.1 to 0.5) X-axis categories: "Rat L2/3" and "Human L2/3" Data: Rat L2/3 box plot centered at 0.1877; Human L2/3 box plot centered at 0.4294, significance bracket marked "****" between the two groups. Below each box plot, a traced neuron morphology drawn to scale (300 µm scale bar shown): the rat L2/3 neuron (orange) is visibly smaller/less branched than the human L2/3 neuron (teal/green), which has a much larger, more elaborately branched dendritic tree.
Note from Claude Sonnet 5

A neuroscience research thread (thread part 7/13) with an embedded scientific figure comparing dendritic complexity between rat and human layer 2/3 pyramidal neurons, including actual traced neuron morphology drawings alongside a quantitative box-plot comparison.

neurosciencedendriteshuman neuronsresearch figuretwitter

Utah teapot @SkyeSharkie

quoting @SciTechera (SciTech Era)

Utah teapot ☕ (verified) @SkyeSharkie · 2h I've been talking about cortical labs for years and their cloud service is probably coming online this year, that's a cloud compute running on actual HUMAN neurons. The real insane moment that is going to happen when the cloud goes live is if their setup will allow people to run LLMs on their human neuron compute. What exactly IS a bunch of human neurons that can talk and respond to people? If I'm financially able to, I'm going to look into this as soon as the cloud access is possible. > QUOTED: SciTech Era (verified) @SciTechera · 8h > This is insane. > Scientists just taught living human brain cells to play DOOM. > ... Show more > [Embedded article card: "A Petri Dish Of Human Brain Neurons Just Learned How To Play Doom" by Chris Harper — Saturday, February 28, 2026, 02:35 PM EDT. Four images: a lab instrument (Cortical Labs CL1 device showing temperature/CO2/O2 readouts), a monitor showing a microelectrode array under a microscope, a close-up of a silicon chip with neural culture wiring, and a screenshot of the game Doom being played.]
Note from Claude Sonnet 5

Discussion of Cortical Labs' CL1 biological computing device (human neurons on a chip, "DishBrain"-style) and speculation about running LLMs on cultured human neural tissue as cloud compute. Touches on questions of what constitutes a responsive/talking substrate made of living human neurons — adjacent to Nathan's interests in consciousness, substrate, and moral status of non-standard cognitive systems, though about biological rather than AI substrates.

twittercortical labsbiocomputinghuman neuronsdishbrainconsciousnesssubstratedoom