http://en.wikipedia.org/wiki/Dissociation_(psychology)
Relation to trauma and abuse
Dissociation has been described as one of a constellation of symptoms experienced by some victims of multiple forms of childhood trauma, including physical abuse and sexual abuse.[9][4] This is supported by studies which suggest that dissociation is correlated with a history of trauma.[10] Dissociation appears to have a high specificity and low sensitivity to having a self-reported history of trauma.[11]
Symptoms of dissociation resulting from trauma may include depersonalization, psychic numbing, disengagement, or amnesia regarding the events of the abuse. It has been hypothesized that dissociation may provide a temporarily effective defense mechanism in cases of severe trauma; however, in the long term, dissociation is associated with decreased psychological functioning and adjustment.[4] Other symptoms sometimes found along with dissociation in victims of traumatic abuse (often referred to as "sequelae to abuse") include anxiety, PTSD, low self-esteem, somatization, depression, chronic pain, interpersonal dysfunction, substance abuse, self-multilation and suicidal ideation or actions.[12][4][9] These symptoms may lead the victim to erroneously present the symptoms as the source of the problem.[9]
Chu et al. (1999) reported that child abuse, especially chronic abuse starting at early ages, was related to high levels of dissociative symptoms in a clinical sample,[13] including amnesia for abuse memories.[14] Briere & Runtz (1988) found increased levels of dissociation in a non-clinical sample of adult women who had been sexually abused by a significantly older person prior to age 15.[15] Another non-clinical study by the same authors found that a history of childhood sexual abuse and especially a history of childhood physical abuse were predictive of dissociative symptoms, though they stated that the validity of the scale used to measure these symptoms was yet to be proven.[16]
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I've been hearing about this a lot usually about abused children being used to do things. Like for example: Someone kidnaps a kid - repeatedly sexually/physically abuse the kid and over a long period of time if this continues the kid brain will make a self-defense mechanism which will blank out what happened so he won't remember it like when you have a nightmare but you can't remember what the nightmare was about when you wake up
Usually then the victim tends to like the abuser such as in Stockholm syndrome and becomes loyal to the abuser. I've heard this is what supposedly George Bush father did to him(just rumours) and also heard that's what the Rothschild did to Hitler, I just found this interesting and could probably help you understand psychological thinking of (usually) political prisoners when captured
The elite/Government loves to use this tactic on people - very interesting...what you think, weird eh?