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Connectomics maps cells and their connections. Imaging and reconstruction can reveal circuit structure at very fine scales. Connecting structure to function is powerful, but maps do not automatically specify every molecular state, experience or memory.
A useful analogy—and its limit
A city map shows routes, not every journey taken on them. Brain connectivity is informative without being a complete record of a life.
What to look for in a paper.
Check species, tissue volume, missing boundaries, reconstruction errors and dataset version. Functional measurements may cover only part of a structural map.
The vocabulary.
- Connectome
- A map of neural connections within a defined system.
- Segmentation
- Separating structures in an image into labeled objects.
- Proofreading
- Checking and correcting a reconstruction or annotation.