“The term 'multiple personality disorder' has historical precedent but it perpetuates the mistaken idea that the proliferation of personality is its key feature. The problem is actually not more but less than one personality: a difficulty in integrating fragments.” PsychologyMental HealthDissociative Identity DisorderDissociationMultiple Personality DisorderMultiple PersonalitiesAlter PersonalitiesDissociative Disorder Author:David Spiegel