[Verse 1] Tritium whispers down the axon's spine, anterograde arrow, forward design, PHA-L and BDA ride the current too, painting the pathway in molecular hue. Fast Blue and Diamidino climb back upstream, cholera toxin B retraces the dream, retrograde runners find the cell body's door, tracing who's sending, and who's asking for more. [Chorus] Прослеживай связь, не гадай, а смотри, от клетки до клетки — пути говорят, feedforward наверх, feedback летит вниз, карта мозга — это твой приз! [Verse 2] Felleman and Van Essen read the cortex like a map, layers tell the traffic, where the signal claps, superficial neurons sending, feedforward's the call, deep layers echo feedback down the hall. Markov counts the labeled cells, fraction by fraction, weighted graphs emerge from retrograde action, not just a yes-or-no, but how loud the thread, weaving quantitative wiring inside your head. [Chorus] Прослеживай связь, не гадай, а смотри, от клетки до клетки — пути говорят, feedforward наверх, feedback летит вниз, карта мозга — это твой приз! [Verse 3] Herpes simplex hops a synapse, climbing tier to tier, cerebellum whispers to thalamus, drawing near, Kelly and Strick chased the chain with rabies in the mix, cerebellum, thalamus, inferior parietal — the loop it picks. Multisynaptic journeys, virus as the guide, jumping cell to cell on the presynaptic side, one tracer alone could never show that bloom — viral relay lit the circuit's hidden room. [Verse 4] Diffusion whispers through the water's drift and spin, deterministic streamlines, probabilistic kin, Behrens built the crossing-fiber model, sharp and swift, spherical deconvolution clears the murky drift. But Thomas checked the tractograms against the macaque's truth, found the phantom bundles, false positives, uncouth, Maier-Hein's challenge, twenty-seventeen's alarm, invalid pathways wearing anatomical charm. [Bridge] Rushworth carved the cortex by the company it keeps, Mars refined the borders where the fingerprint seeps, Ruschel read coactivation patterns, IPL's domain, clustering voxels by the signature they maintain. But resting-state's a shadow, CCEP's a spark not wire, correlation isn't causation, don't confuse desire, functional's the echo, anatomy's the stone — know the difference, specialist, before you're fully grown. [Chorus] Прослеживай связь, не гадай, а смотри, от клетки до клетки — пути говорят, feedforward наверх, feedback летит вниз, карта мозга — это твой приз! [Outro] Связи помни — нейрон не соврёт, tracer, virus, tractography, the circuit finds its code, anatomy whispers truer than the resting glow — трассируй связь, and now you know.
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