My view is that hallucination is something related to the interpretation of reality. It's not really directly mapping to memory at all. The mechanisms of confabulation entirely surround the gluing together of memories, and what are these models other than some sort of representation of memory.

I believe that you can also cause something a bit like a transient dysphasia by giving them bad inputs as well, so there is that on the language production side. However there's still nothing that pertains to the experience aspects central to what hallucinations actually are.