WORMBRAIN
Specimenadult hermaphrodite
BNB Smart Chainblock —
302 neurons20,589 synapses · 4,340 gap junctions
chain read

WORMBRAIN

Caenorhabditis elegans
302 neurons · one body · nothing steering
The whole worm

Every neuron it has, and nobody at the wheel

A millimetre-long nematode has exactly 302 neurons, and every connection between them has been traced by electron microscopy. WORMBRAIN loads that whole map, runs it as a network of living voltages, and plugs its motor neurons into a body made of 24 muscle rows on each of four sides. There is no script in between. The wiring either moves the body or it doesn't, and whichever happens is written down here with its numbers.

  1. 00

    Wiring loaded

    302 neurons, 3,638 chemical links carrying 20,589 synapses, 1,093 electrical links. Read from the published map, nothing edited.

    Done
  2. 01

    Motor map

    159 neurons reach body-wall muscle through 5,377 synapses. Each one lands on a named muscle, row and side.

    Done
  3. 02

    Crawl test

    Drive the forward command neurons and look for a wave that carries the body. It bends and holds. It never travels.

    Failed
  4. 03

    Touch test

    Touch the head, the backward circuit lights up; touch the tail, the forward one does. Shuffled wiring does exactly the same.

    Failed
  5. 04

    Stretch feedback

    Real worms feel their own bending. This body tells the brain nothing yet. Not built.

    Not built
Running in this tab

The worm is not on a server. It is in your browser, right now

Every dot below is one neuron, placed where its cell body sits in the animal, head on the left. Colour is voltage against that neuron's own resting point. Underneath is the body those neurons drive. Leave it alone and it gets the odd smell or touch at random; press a button to deliver one yourself.

Live · 302 neurons graded model · 1 ms steps · runs locally
Running
Brain time
0.0s
Backward circuit
0.0
Forward circuit
0.0
Muscle tone
0%
Travel
0.00
What just happened
    Circuit values are the mean change in millivolts across the command interneurons for each direction. Travel is net distance along the head direction, in body lengths. None of these numbers is smoothed for show.
    Test 02 · the crawl

    Push the forward button and it bends in place

    The protocol was written down before the first run. Inject current into the two forward command neurons for ten seconds and watch the body. It passes only if the middle of the body swings back and forth, the swing travels from head to tail, the worm covers a quarter of its own length, and none of that happens on shuffled wiring or with no drive at all. Six seeds per condition.

    Test 02 · crawl forward command pair · 1,000 pA · 10 s
    Pass = false
    Real wiring · body bend over time
    Shuffled wiring · same drive
    ventraldorsal
    Rows run head (top) to tail, columns are 0 to 10 s. A crawl would draw diagonal stripes. Both panels are one flat band.
    Verdicts · measured against required
    Reading. Under drive the forward command neurons sit about 40 mV above rest and the B-class motor neurons about 20 mV, but the body settles into one steady bend toward the belly and stays there. There is no oscillation for a wave to ride on, so nothing travels. Shuffled wiring gives the same bend. The six seeds came out almost identical, because the added noise is tiny against this much coupling, so treat this as closer to one run than six.
    Test 03 · touch

    The right answer for the wrong reason

    A real worm touched on the head backs away and touched on the tail speeds forward. Here the touch neurons get two seconds of current, and we measure which command circuit rises. The test also demands that shuffled wiring gets it wrong, because otherwise the answer says nothing about this particular map.

    Test 03 · touch gentle-touch neurons · 1,000 pA · 2 s Pass = false
    Mean change during the touch, millivolts, across six seeds.
    Verdicts · measured against required
    Reading. Direction is right both ways: head touch lifts the backward circuit about nine times more than the forward one, tail touch the reverse. But a shuffle that keeps every neuron's number of connections does the same, because the command interneurons are hubs that receive from almost everything. The routing is a property of who has the most inputs, not of this exact map. So it fails the test it set itself.
    Contract address · $WORMBRAIN
    Not deployed yet. This page will show it the moment it exists.
    What it is

    A measured nervous system, not a neural net with a biology costume

    The connections come from electron micrographs of real animals, compiled by the OpenWorm project from the hermaphrodite connectome of Cook and colleagues (Nature, 2019). The copy used here is OpenWorm's c302 edge list, MIT-licensed. Cell body positions come from OpenWorm's anatomical model. Nothing was generated or sampled.

    Worm neurons mostly don't fire spikes, so each one is modelled as a single graded compartment after Wicks and colleagues (1996) and Kunert and colleagues (2014). Every neuron's threshold is its own resting voltage inside the full network. The body is a 24-segment midline that moves by resistive force theory: it gets nowhere unless its own shape change pushes against the ground.

    The dish

    Four worms on one plate, each with its own brain

    Four separate copies of the connectome share a petri dish. Tap the plate and every worm's touch neurons fire at once. The worm lying nearest the bacteria keeps catching their smell. Click any worm to poke it. The captions are built from those events by fixed rules, the same words every time. They are not thoughts; a worm has no words.

    Open the dish
    On-chain

    $WORMBRAIN

    The token lives on BNB Smart Chain. Until the contract exists, every row that depends on it says so instead of guessing. Check the explorer yourself rather than trusting this page.

    Contractnot deployed
    ChainBNB Smart Chain · chain id 56
    Supply1,000,000,000
    Launch venueannounced with the contract
    Latest block read

    Open BscScan

    What is not real, said out loud

    Where the worm ends and we begin