[Verse 1]
Down where the tide pulls back from the sand
A horseshoe crab wears compound eyes like armor plans
Hartline wired electrodes into a single facet's thread
Found every bright cell bullies the dimmer ones instead
Nineteen sixty-seven, Stockholm rang the bell
For a crab-eye secret that every retina knows well
Your neighbor glows, so you go quieter, that's the trick
Contrast sharpens where two signals click
[Chorus]
Lateral inhibition, the neighbor-knockdown game
Loudest cell on the block calls the quiet ones tame
Edges pop, the middle goes flat
Mach bands glowing where there's nothing like that
Compare and suppress, that's the sensory creed
Winner shouts loudest, the rest concede
[Verse 2]
Light lands first on the photoreceptor's door
Hands it to the bipolar, who hands it on for more
Ganglion cells collect the news and fire down the line
But horizontal cells are tapping sideways all the time
They spread the inhibition wide like gossip through a row
Telling each receptor what its neighbor starts to know
Kuffler mapped it fifty-three, a bullseye on a disc
Center says one thing, the surround insists
[Chorus]
Lateral inhibition, the neighbor-knockdown game
Loudest cell on the block calls the quiet ones tame
Edges pop, the middle goes flat
Mach bands glowing where there's nothing like that
Compare and suppress, that's the sensory creed
Winner shouts loudest, the rest concede
[Verse 3]
ON-center cells light up when a spot shines bright and bold
OFF-center cells wake up for a shadow, dark and cold
Ring around the middle always votes the other way
That's why a gray square looks lighter next to gray
Stare at a staircase, watch the steps that aren't there glow
Illusory stripes your own wiring made for show
It isn't in the photons, it's the math your neurons run
Difference from the neighbor, that's the signal, that's the fun
[Bridge]
Now crank the inhibition till it's mutual and tight
Every cell's a rival fighting for the spotlight
One contender rises, drags the others to the floor
Winner takes the circuit, quiets everybody's roar
Attention picks a target, a choice gets crystal clear
That's the final function of the bully wired in here
[Chorus]
Lateral inhibition, the neighbor-knockdown game
Loudest cell on the block calls the quiet ones tame
Edges pop, the middle goes flat
Mach bands glowing where there's nothing like that
Compare and suppress, that's the sensory creed
Winner shouts loudest, the rest concede
[Outro]
Compare with your neighbor, that's the rule in every eye
Crab or cortex, same old trick running sideways, slanted wise
Suppress to sharpen, quiet makes the signal gleam
Lateral inhibition, the contrast-building scheme