[Verse 1]
Deep in the parietal cortex lies a grand command center
Where vision meets with action, where the dorsal stream will enter
From retina to fingertips, it transforms what the eyes can see
Eye-centered coordinates become hand and body geography
[Chorus]
PPC's the bridge between, where you look and what you reach
LIP maps priority, VIP's the space you breach
MIP controls your reaching arm, AIP will shape your grip
Coordinate transformation, that's the parietal trip
[Verse 2]
LIP creates a salience map, decides where next to gaze
Not just what the stimulus shows, but what deserves your mental maze
Behavioral relevance guides the neurons firing bright
Planning every saccade with spatial attention's might
[Chorus]
PPC's the bridge between, where you look and what you reach
LIP maps priority, VIP's the space you breach
MIP controls your reaching arm, AIP will shape your grip
Coordinate transformation, that's the parietal trip
[Verse 3]
VIP handles near-body space, multisensory and keen
Calculating where you're heading through the visual scene
MIP and parietal reach region move your arm with grace
While AIP reads object shape, configures hand's embrace
[Bridge]
Andersen found the gain fields, neurons that combine
Retinal position signals with body's spatial design
Eye and head position data merge in neural computation
Turning "where on retina" into motor coordination
[Verse 4]
When MT region suffers damage, motion blindness takes its toll
Patient LM cannot see movement, akinetopsia's cruel control
Optic ataxia follows lesions, reaching becomes impaired
Hemispatial neglect emerges when right parietal's been snared
[Verse 5]
Mirror neurons fire when watching others reach and grasp
Social learning through imitation, movement patterns that we clasp
Plasticity allows recovery when stroke has done its harm
Physical therapy rewires circuits, teaching brain to guide the arm
[Chorus]
PPC's the bridge between, where you look and what you reach
LIP maps priority, VIP's the space you breach
MIP controls your reaching arm, AIP will shape your grip
Coordinate transformation, that's the parietal trip
[Outro]
From Newsome's stimulation studies to the fMRI's glow
The dorsal stream's deep secret is the spatial math we know
[Final Chorus]
PPC's the bridge between, where you look and what you reach
LIP maps priority, VIP's the space you breach
MIP controls your reaching arm, AIP will shape your grip
Coordinate transformation, that's the parietal trip