[Verse 1] Minoshima watched the PET scans glow pale and slow, mild impairment hiding where the precuneus won't flow, hypometabolic shadows years before the storm, posterior cingulate losing its familiar form. Buckner mapped exactly where amyloid likes to nest, default-network hubs, the busiest, the best addressed, Klunk gave us a tracer, PiB, a dye that clings to plaque, lighting up the damage decades before memories lapse. Medial parietal cortex, flagged and bright, the earliest biomarker, the canary of the night. [Chorus] Précunéus, précunéus, ne t'efface pas, hold the hub together, don't let the glucose drop like that, Amyloid's a palimpsest, writing over thought, erasing older memories, leaving traces caught, Mon cerveau pariétal, reste éveillé, the posterior cortex is where the early truth is laid. [Verse 2] Benson in eighty-eight first sketched the lonely frame, posterior cortical atrophy, a quieter name, Crutch refined the criteria, twenty-twelve, then again, visuospatial chaos is Bálint's strange domain— can't see two things together, simultanagnosia's reign, Gerstmann adds the fingers lost, left and right in vain, atypical Alzheimer's wearing a different face, same plaques, same tangles, a stranger starting place. [Verse 3] Corticobasal syndrome, lopsided and cruel, one arm turns apraxic, forgetting every tool, cortical sensory loss, the touch goes to static hum, alien limb wanders off, it won't say where it's from, asymmetric frontoparietal decay, area five misfiring, praxis stripped away. [Chorus] Précunéus, précunéus, ne t'efface pas, hold the hub together, don't let the glucose drop like that, Amyloid's a palimpsest, writing over thought, erasing older memories, leaving traces caught, Mon cerveau pariétal, reste éveillé, the posterior cortex is where the early truth is laid. [Verse 4] Dyscalculia lives in the intraparietal groove, numbers lose their landmarks, quantity won't move, Dyslexia leans left, temporoparietal lane, arcuate and the vertical fasciculus under strain, Schizophrenia, ADHD, both reroute the wire, inferior parietal lobule, frontoparietal choir singing out of rhythm, connectivity askew, different silhouette, same networks coming through. [Bridge] Laureys watched the coma lift in ninety-nine, precuneus waking, thalamus back online, consciousness returning isn't just a switch, it's the posterior cortex rejoining the stitch, metabolism rising like a tide beneath the skull, reconnecting hubs until the thinking's full. [Chorus] Précunéus, précunéus, ne t'efface pas, hold the hub together, don't let the glucose drop like that, Amyloid's a palimpsest, writing over thought, erasing older memories, leaving traces caught, Mon cerveau pariétal, reste éveillé, the posterior cortex is where the early truth is laid. [Outro] C'est la pariétale, elle raconte tout, from Alzheimer's whisper to the coma's hush, every syndrome leaves its fingerprint, its blush, read the cortex like a map, mon amour, écoute.
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