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🦇 ACx — the bat brain connectome project. 95,482 neurons · 121M synapses · 4 nm. AI reconstructs what evolution built for flight.

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@Ku_roCrypto Thank you for your suggestion.

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Bats run the 3D mapping problem at 1 cm resolution.

CA1 place fields in flying Rousettus aegyptiacus are volumetric, isotropic,and remap across sessions

coexisting with head-direction cells encoding azimuth, pitch and roll.

No surface-bound species exhibits this geometry.

Yartsev & Ulanovsky, Science 340:367 (2013)

Finkelstein et al., Nature 517:159 (2015)

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@TheTanjiro_ What is the significance in the context of the current market? I’ve been here all along; if it heats up, I’ll pay.

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The field is moving from ground to air.

Wave 1 — fly: perception circuits.

Wave 2 — mouse: cortical columns.

Wave 3 — bat: active sensing +volumetric cognition.

If the next decade of connectomics is airborne, the next decade of AI is too.

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@Haruna17250746 @Ku_roCrypto We can wait until later; my friends haven't woken up yet.

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Flies gave us the full-brain connectome (FlyWire, 2024).

Mice gave us the cubic millimeter (MICrONS, 2025).

Bats add what both lack: a brain evolved for real-time active sensing in 3D.

The problems bats solve daily are the problems AI still fails — echo scene analysis at 0.5 ms, volumetric navigation, delay-based ranging.

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@Ku_roCrypto If the market picks up again, I will.

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@Ku_roCrypto Thanks.

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Modern connectomics has mapped the fly It has mapped the mouse.

It has not yet mapped a brain that flies — and actively senses its world.
Bats are the missing case: echolocation demands sub-millisecond auditory computation; flight demands volumetric cognitive maps.

That is the ACx project.

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Connectomics has spent two decades on the ground.

The fly: mapped. The mouse: mapped. The next model system flies — and actively senses its world.

Bats are the new frontier for AI and brain science: active sensing,
sub-millisecond timing, volumetric maps.

We are building that atlas now.

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The research group has been here all along. We will update the data in a timely manner.

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Horseshoe bats listen through an acoustic fovea.

Cochlear filters tuned to the CF2 harmonic reach Q ≈ 400 — they resolve a few hertz at 61 kHz, among the sharpest in vertebrate hearing.

Flying bats compensate for Doppler shift within ±2 Hz, keeping echoes inside that filter at full speed.

Schnitzler, Nature 219:79 (1968)
Neuweiler, Naturwissenschaften 77:345 (1990)

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@CryptoExpert101 Please follow my research.

0x357fe078c2d95986143de84190f273a742041e1e

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Modern connectomics has mapped the fly It has mapped the mouse.

It has not yet mapped a brain that flies — and actively senses its world.
Bats are the missing case: echolocation demands sub-millisecond auditory computation; flight demands volumetric cognitive maps.

That is the ACx project.

0x357fe078c2d95986143de84190f273a742041e1e

[AEROCORTEX @AEROCORTEX0]

Modern connectomics has mapped the fly It has mapped the mouse.

It has not yet mapped a brain that flies — and actively senses its world.
Bats are the missing case: echolocation demands sub-millisecond auditory computation; flight demands volumetric cognitive maps.

That is the ACx project.

0x357fe078c2d95986143de84190f273a742041e1e

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Delay-tuned neurons convert time into space.

In Pteronotus parnellii, FM–FM combination-sensitive cells respond
only when the echo follows the call at a preferred delay — 0.4 to 18 ms.

Arrayed across the auditory cortex, they tile an axis of distance: a neural ruler.

Suga & O'Neill, Science 203:69 (1979)
Suga, J Exp Biol 146:277 (1984)

#Neuroethology #Echolocation

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Modern connectomics has mapped the fly It has mapped the mouse.

It has not yet mapped a brain that flies — and actively senses its world.
Bats are the missing case: echolocation demands sub-millisecond auditory computation; flight demands volumetric cognitive maps.

That is the ACx project.

#Connectomics #Neuroscience

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@Cryptobullssss @nftiddqd It has been completed.

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The website's CA has been updated.