What resolves this contention: Tension between continuum vs discrete-type accou…

What resolves this contention: Tension between continuum vs discrete-type accounts of cortical neurons. Excitatory morphological diversity in MICrONS reads as continuous, while inhibitory Sst neurons appear discretely separable into MET-types with type-specific connectivity. The conflict cuts across E vs I; the question whether E→E claims should rest on discrete excitatory categories remains open. / Contrary to previous classifications into discrete morphological types (m-types), our data-driven approach suggests that the morphological landscape of cortical excitatory neurons is better described as a continuum, with a few notable exceptions in layers 5 and 6. / We further analysed Martinotti cells-a somatostatin (Sst)-positive¹⁷ morphological cell type^18,19-which were classified successfully into Sst MET-types with distinct axon myelination and synaptic output connectivity patterns.