here's the context again: Among other important factors are [...] mental technique (e.g. associative, extrapolative, intuitive, holographic, or nulutative)..

David Brin writes:

In this case the word does NOT come from "Mrs. Byrne's Dictionary of Unusual Words." Rather, it is made-up for a very good storytelling reason. Sometimes, the reader is supposed to FEEL that there have been new concepts developed in the future. Inserting a neologism is better than saying "they didn't know about this in 2007."

I didn't mention Mrs. B in my query, but I did provide a link to this forum, so David must have actually looked in here.

-joe (fact-finding) friday