[Verse 1] Deep inside your temporal lobe there's a zone called MST Takes the signals from MT and builds a bigger mystery When you're walking down the hallway, driving through the countryside All that motion flowing past you gets processed and refined [Chorus] MST reads the optic flow Expansion, contraction, rotation show Where you're heading, how you're moving through space Motion patterns guide your path and stabilize your gaze MST, medial superior T Downstream processing, setting your body free [Verse 2] Picture standing in a tunnel with the walls expanding wide That's the signal MST loves when you're moving straight inside Spiral patterns, swirling vortex, when your head begins to turn These are global motion signals that your brain has got to learn [Chorus] MST reads the optic flow Expansion, contraction, rotation show Where you're heading, how you're moving through space Motion patterns guide your path and stabilize your gaze MST, medial superior T Downstream processing, setting your body free [Bridge] Vestibular whispers secrets from your inner ear canal MST integrates the message, visual-vestibular Self-motion computation, heading estimation too Large-field motion detectors working hard for me and you [Verse 3] Not just single dots or edges like the cells we've seen before MST wants bigger pictures, motion spread across the floor Locomotion navigation, keeping balance when you move Ancient circuits in your cortex help you find your forward groove [Verse 4] When the pilot banks the aircraft or the sailor rides the swell MST is calculating every motion, working well Complex scenes with multiple objects moving all around Your MST sorts signal from the noise without a sound Focus of expansion tells you where your path will lead This cortical area gives you everything you need [Chorus] MST reads the optic flow Expansion, contraction, rotation show Where you're heading, how you're moving through space Motion patterns guide your path and stabilize your gaze MST, medial superior T Downstream processing, setting your body free [Outro] From MT to MST, the processing chain unfolds Optic flow and heading signals, stories that your brain has told
← MT / V5 - the motion area | Posterior parietal cortex (PPC) →