[Verse 1] In the scanner's magnetic embrace so strong Blood oxygen tells the neural song BOLD signals dancing through your brain Millimeter maps where visions reign Seconds tick by while we decode The visual pathways, neuron's abode Non-invasive window to the mind Whole-brain secrets waiting to find [Chorus] BOLD and bright, the signal flows Where the visual cortex glows Correlations paint the scene But causation stays unseen Coarse resolution tells the tale Of how human visions never fail BOLD and bright across V1 Till the visual processing's done [Verse 2] Traveling waves sweep 'cross the screen Mapping borders sharp and clean V1, V2, V3 appear Retinotopic boundaries crystal clear Cortical magnification shown In living flesh and blood and bone Each visual area finds its place Through stimulus patterns we can trace [Chorus] BOLD and bright, the signal flows Where the visual cortex glows Correlations paint the scene But causation stays unseen Coarse resolution tells the tale Of how human visions never fail BOLD and bright across V1 Till the visual processing's done [Verse 3] Functional localizers stake their claim Faces over objects play the game FFA emerges from the noise While PPA gives scenes its voice Motion beats static every time To find hMT+ in neural rhyme Category patches come alive When contrast signals help them thrive [Verse 4] MVPA reads the voxel code Patterns dancing down the road Classifiers decode what you see From neural activity running free Early cortex holds the key To reconstruct what eyes perceive Rough images from brain waves drawn The workhorse method carries on [Bridge] But remember what this method lacks Hundreds of thousands in each tract Voxels pool neurons by the score BOLD runs slow, can't give us more No single cells beneath our view No causation breaking through Just correlations, rich and wide Across the brain's visual divide [Verse 5] Network analysis reveals the flow How visual regions come and go Connectivity maps the brain's design Where feedforward meets the feedback line Laminar patterns start to show Which layers make the signals grow Top-down predictions meet their mark In this neural feedback arc [Chorus] BOLD and bright, the signal flows Where the visual cortex glows Correlations paint the scene But causation stays unseen Coarse resolution tells the tale Of how human visions never fail BOLD and bright across V1 Till the visual processing's done [Outro] In the blues of brain scanning light BOLD signals burning bright Human vision's secrets told Through the story BOLD unfolds
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