[Verse 1] Light hits the retina, photoreceptors wake Twenty milliseconds for the chemical shake Brighter means faster through that transduction dance RGCs fire by fifty, giving vision its chance Through the optic nerve the signal races on LGN at thirty-five, relay station strong [Chorus] It's the staircase of response, climbing through the brain Every millisecond counted in the visual chain From photons to perception, timing tells the tale V1 to V4 ascending, IT brings up the trail One hundred fifty total for that first decision made The hierarchy revealed by each synaptic delay [Verse 2] V1 lights up at forty, magno cells lead the way Parvo trails behind them by a few millisecond's stay V2 joins at sixty with its complex feature maps V4 follows after with attention's binding gaps But here's the plot twist in this neural narrative flow MT jumps the queue at fifty, stealing V4's show [Chorus] It's the staircase of response, climbing through the brain Every millisecond counted in the visual chain From photons to perception, timing tells the tale V1 to V4 ascending, IT brings up the trail One hundred fifty total for that first decision made The hierarchy revealed by each synaptic delay [Verse 3] The magno superhighway rockets information through Dorsal stream for action beats the ventral's careful view While IT contemplates objects from eighty to one-ten Your reflexes already moved your hand away again Conscious recognition waits for two hundred or more By then your brain's decided what this image is for [Verse 4] Single cell recordings tell us where and when they fire Each electrode listening to neural choir Spike trains mark the moments when the neurons come alive Millisecond precision shows how visual circuits thrive From anesthesia's window to the awake and alert state The timing never lies about each processing gate [Bridge] Thorpe discovered something in that ultra-rapid test One feedforward sweep is all you need to beat the rest No time for reconsideration, no loops back to start Just layer after layer playing its neural part The strongest evidence we have for how the system's built Is written in the timing, millisecond to the hilt [Chorus] It's the staircase of response, climbing through the brain Every millisecond counted in the visual chain From photons to perception, timing tells the tale V1 to V4 ascending, IT brings up the trail One hundred fifty total for that first decision made The hierarchy revealed by each synaptic delay [Outro] From macaque to human, the pattern stays the same Response latency staircase, time-stamped neural fame High contrast and foveal, the conditions crystal clear The brain's processing order written in what we hear
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