This leads me to wonder if there actually might be some value in revisiting Jaynes' <i>Origin of Consciousness in the Breakdown of the Bicameral Mind</i>. I'm also reminded of a monograph -- can't recall the name -- by a 1970s psychiatrist that argued for treating schizophrenics through cognitive therapy, and provided several case studies in support of his or her argument. It seemed a bit speculative to me when I read it, but this article is pretty good anecdotal support in favor of that kind of strategy.
I'm confused, I hear voices in my head all the time, isn't that just called thinking, or a type of active thinking. Sure they are not at war with each other like they were with this lady, but I certainly hear my mother's voice say 'pick up your clothes from the floor' and she's nowhere to be found, or like right now, I'm hearing 'Okay, enough Hacker News, you've got a meeting to get to in 30 mins and you are already late.'<p>They've also said 'I wouldn't do that if I were you,' when I'm about to do something risky, or even 'Nice job - swish', when I've done something that's a bit of a trick shot.<p>Are we talking about louder, more insistent voices, further down the spectrum of voices in head? I guess my question is --- 'Who doesn't have voices?' and what's wrong with them?