Formation
Morphological reading: neuro- + loss + schism (approximate internal reading).
The source itself calls it a “neologism,” placing split, loss and nervous-system language in a deliberately unstable compound.
Source
Earliest indexed occurrence: A FRAMED S҉C҉R҉E҉A҉M҉ · 2023-12-07.
“and detour . . . sloshed-noggin neologism neuroloschism . . . PASS THE AUX TO THE AUTISM. 2.…”
Why it matters
The point is not merely novelty. The collision arrives before the definition does. See The JQD word-machine and the lexicon entry.