[Verse 1]
Deep in hippocampus where the memories collide
Grid cells fire in hexagons, but there's more than meets the eye
MEC's got a secret that goes beyond the spatial plane
General purpose mapping system running through your brain
Physical space was just the start, the tip of iceberg cold
Now we're seeing abstract concepts in the neural code unfold
Social ladders, task structures, hierarchies take their place
In the same computational framework that once mapped only space
[Chorus]
Cognitive maps for everything, not just the streets you walk
Grid codes firing patterns for the way that people talk
Successor representation, Tolman-Eichenbaum machine
Abstract navigation systems in the cortex crystalline
Beyond the spatial boundaries, the MEC reveals its art
Structured knowledge representation, every concept finds its chart
[Verse 2]
Tolman-Eichenbaum theory says the hippocampus learns
Factual knowledge networks where the neural current burns
Successor representation predicts what's coming next
Whether stepping through a hallway or through semantic text
Grid cells modulate their firing for dimensions yet unseen
Social distance, temporal gaps, and conceptual between
The same hexagonal patterns that helped rats navigate maze
Now encode abstract variables in computational ways
[Chorus]
Cognitive maps for everything, not just the streets you walk
Grid codes firing patterns for the way that people talk
Successor representation, Tolman-Eichenbaum machine
Abstract navigation systems in the cortex crystalline
Beyond the spatial boundaries, the MEC reveals its art
Structured knowledge representation, every concept finds its chart
[Bridge]
Evidence emerges from the non-spatial domain
fMRI showing grid-like signals in the conceptual terrain
Bird songs mapped in frequency, social ranks in primate crews
Time and sequence, pitch and tone, all wearing spatial shoes
AI researchers take notice of this neural architecture
General intelligence might need this cognitive furniture
[Verse 3]
What's a map when space dissolves into abstraction's realm
Relationships and structures with the MEC at the helm
Distance measured not in meters but in similarity
Neighbors in conceptual space sharing affinity
From concrete coordinates to knowledge organization
The brain's cartographer expands its jurisdiction
Same algorithms, different data, universal computation
Structured representation for cognitive evolution
[Chorus]
Cognitive maps for everything, not just the streets you walk
Grid codes firing patterns for the way that people talk
Successor representation, Tolman-Eichenbaum machine
Abstract navigation systems in the cortex crystalline
Beyond the spatial boundaries, the MEC reveals its art
Structured knowledge representation, every concept finds its chart
[Outro]
MEC-hippocampal system, architect of mental space
Where abstract meets concrete in neural embrace