Where in Fenspace is "Dr. Asmodeus Grey"?

[Ace Dreamer]

Sounds something like induced Multiple Personality Disorder (whatever it is fashionable to call it at the moment), or some other major fragmentation of the personality. Fiction has some remarkably precise devices which mess with people's memories, but I'm not sure how much you could get handwavium to cooperate in this sort of thing.

I think they developed it from some "quick-learning" device some other Fen invented.

That sounds... unfortunate.  Sounds like a conditioning effect, unless the "quick-learning" device had an erase capability, for when you needed to un-learn old stuff before learning new stuff.

Fenspace is not limited to building stuff from Scifi... (and it cannot build all stuff described in Scifi)

Yes, there are all sorts of sources for stuff.  And, a lot of stuff either isn't possible, or isn't appropriate for Fenspace.

I suppose you could claim that hard-tech is used to do the
damage, and handwavium is working as hard as it can to minimise the bad
effects. One possibility is that the memories are all still there, they
just can't be accessed, due to damage to either the retrieval system, or
the indexing/associative system that lets people get at their memories.
Changing someone's sense of personal identity by changing their body to
a catgirl would be quite traumatic, and it is possible Boskone had a
way of directing the effects of that trauma. Maybe something like high
tech conditioning?

If my (as a writer) knowledge is right, the memories are not there anymore.

CI will have proven this in 2016 during their research.

Wow!  That is impressive.  If the mind wipe will work at any other time than while they're in the Catgirling Machine, doubly impressive.  IRL we don't know how memories are stored.  But long-term memories will survive really massive trauma.  Sounds like something which messes with the basic neural wiring, or memory RNA, or methylation:
http://epigenie.com/memor...aved-by-dna-methylation/
A real "erase head".
--
"It is the business of the future to be dangerous" - Hawkwind