[Verse 1] From auditory cortex the pathways diverge and split Two streams of neural current where language circuits sit The ventral route flows forward mapping sound to what it means Through temporal territories and semantic machine scenes Superior to middle then inferior it goes To anterior temporal where conceptual binding grows [Chorus] Dual streams running through the brain Ventral sound-to-meaning train Dorsal sound-to-speech domain Arcuate fasciculus maintains The connection superhighway lanes Where language lives and language reigns [Verse 2] The dorsal stream ascends from posterior temporal ground Through inferior parietal where sensory motors are found Supramarginal and angular gyri guide the way To frontal premotor regions where articulation plays The arcuate fasciculus carries signals through the tract Superior longitudinal connects what speech demands intact [Chorus] Dual streams running through the brain Ventral sound-to-meaning train Dorsal sound-to-speech domain Arcuate fasciculus maintains The connection superhighway lanes Where language lives and language reigns [Verse 3] In Broca's territory forty-four and forty-five Inferior frontal gyrus keeps syntax alive Hierarchical structures and articulatory plans While Wernicke's posterior superior commands Phonological access and lexical retrieval too Not isolated centers but network hubs that grew [Verse 4] When damage strikes the pathways different symptoms appear Conduction aphasia when the arcuate's unclear Semantic dementia hits the anterior pole While phonological deficits reveal the dorsal role The double dissociation proves the streams are distinct Yet normal conversation keeps them perfectly linked [Bridge] The arcuate's immature when babies start to speak Weakly myelinated fibers growing week by week This dorsal route develops while children learn each word The gradual cortical timeline perfectly conferred From middle temporal forward to the semantic hub Through inferior parietal the motor circuit's dubbed [Chorus] Dual streams running through the brain Ventral sound-to-meaning train Dorsal sound-to-speech domain Arcuate fasciculus maintains The connection superhighway lanes Where language lives and language reigns [Outro] Distributed and interconnected networks interweave The slow-system destination where representations achieve Their final cortical home in temporal gyri's embrace Where consolidated language finds its permanent place [Final Chorus] Dual streams running through the brain Ventral sound-to-meaning train Dorsal sound-to-speech domain Arcuate fasciculus maintains The connection superhighway lanes Where language lives and language reigns
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