The brain functions the way it does because of *constraints* placed on it by the metabolic costs of neuronal activity. Not by "more" And its not even about spiking neurons(!) One of the key drivers of what the brain can do under such intense metabolic constraints are neurons that *don't* fire. - ThreadSky

About ThreadSky

neuromorphicboki.bsky.social • 77 days ago

The brain functions the way it does because of *constraints* placed on it by the metabolic costs of neuronal activity. Not by "more"

And its not even about spiking neurons(!) One of the key drivers of what the brain can do under such intense metabolic constraints are neurons that *don't* fire.

Comments

neuromorphicboki.bsky.social•77 days ago

Key results, which altogether have been lost on the ANN and computational community is that non-spiking neurons with graded potentials play a key role in *optimally* routing information in the brain by decreasing the metabolic cost and increasing the information transferred.

neuromorphicboki.bsky.social•77 days ago

This was literally shown in many papers, of which this one is a beautiful example.

neuromorphicboki.bsky.social•77 days ago

And here, where they actually measured it(!):

neuromorphicboki.bsky.social•77 days ago

Actually, it appears that most effective information exchange may not rely solely on spiking neurons. But it is non-spiking neurons, which effectively coarse-grain the signal, that seem to provide a more energy-efficient and information-rich strategy for the brain to perform its functions.

neuromorphicboki.bsky.social•77 days ago

This is at complete odds with what Ilya proposes. It is *precisely* the multiscale dynamical structure that exists, not in parallel with, but *because of* metabolic costs of neural spiking (what @pessoabrain.bsky.social mentioned)..

neuromorphicboki.bsky.social•77 days ago

And the different cell types (what @macshine.bsky.social, and @jaanaru.bsky.social touch on)..

that makes the brain, *brainy*.

I don't disagree, ANNs computational units might be good abstractions of neurons.

*But* this does not entail that the systems generated by them, are analogous too.

Posting Rules

Be respectful to others
No spam or self-promotion
Stay on topic
Follow Bluesky's terms of service

Comments

Posting Rules

Reply