[Verse 1]
Scalp wired up with electrodes, catching sparks that fly,
Cortex hums its secrets just before you try.
Readiness potential creeps up slow and sly,
Milliseconds counted while the neurons vie.
Mu rhythm rolling, beta keeping time,
Both of them go quiet when you cross the line.
[Chorus]
EEG's the clock hand, ticking fast and tight,
MEG's the magnet whisper, pinpoint in its sight,
fMRI's the photograph of blood in slow delight,
Three windows on the brain to get the motor story right.
[Verse 2]
Thirteen up to thirty hertz, that's the beta band,
It dims the moment that you lift a steady hand.
Then it comes back roaring once the reach is done,
A rhythmic little seesaw underneath the skin.
But in Parkinson's shadow, beta floods too strong,
A drumbeat stuck on repeat, locking limbs headlong.
[Chorus]
EEG's the clock hand, ticking fast and tight,
MEG's the magnet whisper, pinpoint in its sight,
fMRI's the photograph of blood in slow delight,
Three windows on the brain to get the motor story right.
[Verse 3]
Magnet tunnel humming, oxygen's the clue,
Blood rushes to the busy patch doing what you do.
Finger maps unfurling like a hand-shaped quilt,
Sequence learning traced in every synapse built.
Slow across the seconds, sharp across the space,
A patient kind of camera charting motor's place.
[Bridge]
Monkey electrodes, planted deep and true,
Gave us maps and theories—now we test on you.
No scalpel, no shadow, just a helmet and a hum,
Magnetic fields confessing what the currents have become.
MEG hears it quicker, finds it with more grace,
Stitching time to location in one seamless embrace.
[Verse 4]
Three tools, one question: how the brain moves hands,
From readiness whispers to blood's slow demands.
Noninvasive windows, no need to cut or probe,
Carrying the monkey's wisdom round the human globe.
Electrons, magnets, molecules of air,
Every spike and ripple says the motor plan is there.
[Verse 5]
Resolution's a trade, you never get it all,
Time or space, each method pays its toll.
EEG moves quick but blurs the where it came,
fMRI finds the spot but lags behind the flame.
MEG splits the difference, threading through the maze,
Mapping motor cortex through its magnetic haze.
Clinicians watch the signals, searching for the sign,
Of tremor, stroke, or lesion crossing the design,
Each scan a piece of puzzle, each wave a thread to find,
Weaving circuitry together, body bound to mind.
[Chorus]
EEG's the clock hand, ticking fast and tight,
MEG's the magnet whisper, pinpoint in its sight,
fMRI's the photograph of blood in slow delight,
Three windows on the brain to get the motor story right.
[Outro]
Fast as a heartbeat, sharp as a pin,
Slow as a tide pulling blood from within—
EEG, MEG, and fMRI,
Three ways of asking the brain to say why.