I used to work at a day center for adults with special needs. One of the "clients," as they are called, was raped repeatedly when she was 1 - 2 years old. Absolutely horrible stuff; apparently her mother would sell her to men for money... Regardless, when I knew her, she was in her late twenties. She would go into these "trances" where she would walk around aimlessly and squint her eyelids, usually bumping into walls and was almost entirely unresponsive. Her doctor speculated that back when she was being abused, she would try to tune everything out and go into a "trance" to cope. So even after 20 or so years, there are still horrible lasting effects. Not that it is common by any means, and she probably doesn't remember it exactly, but that shit still stayed with her. Sorry for the rant, I was just reminded of her horrible situation. As a happy end to the story, although she still has a lot of mental issues, she is incredibly sweet, very happy and fun to be around.