Are the states of consciousness reached during deep meditation the same as dissociative trance states?

"Dissociation" is a common method used by traumatized children, prisoners of war, and schizophrenics to avoid stressful environments by "going away in their mind." Dissociation is the ability to enter trance states, but these trance states are associated with pathologies characterized by the... show more "Dissociation" is a common method used by traumatized children, prisoners of war, and schizophrenics to avoid stressful environments by "going away in their mind." Dissociation is the ability to enter trance states, but these trance states are associated with pathologies characterized by the fragmentation and deterioration of the "self." For example, "multiple dissociative disorder" is a psychological term for "multiple personality disorder." This is a disorder in which the conscious mind "hears the voices" of dissociated parts of the self. Dissociation can result in a person appearing severely withdrawn and unresponsive. A person can "get lost" in trance, preferring being spaced out to reality.

Some sects use meditation to work with their minds in an effort to reach "samadhi". Are the states of consciousness reached by such meditators the same as "dissociative trance states?" And do meditators sometimes experience pathological mental or emotional issues as a result of meditation?
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