[DC-3]

Not saying the theory is bunk but I think that basically everything about this on Wikipedia is written and illustrated by the researcher who devised the theory. So it's that guy.

[ahartmetz]

I doubt it because the guy died in 1934. There is no short, clear statement on the Wikipedia page that it was this guy, only that he "proposed a theory". https://en.wikipedia.org/wiki/Santiago_Ram%C3%B3n_y_Cajal

[pitpatagain]

That's the proposer of visual map-based theory, a different explanation for the same things axial twist theory tries to explain. Axial twist is much more recent.