Here's the book:  "overheard in a dream" by Torey Hayden.

Torey Hayden writes a lot of non-fiction.  SHe's a child psychologist who has written books about all the messed up kiddies she worked with, and she's one of my faviourite authors. 

But a couple of months ago i stumbled across a NOVEL that she wrote.  It's about a psychiatrist trying to 'unlock' a supposedly autistic boy, and he works a lot with the little boy's mother. 

What's interesting here…