The dissociative dimension emerges within the matrix of interpersonal relationships and is the result of a development that originates in traumatic interpersonal contexts. The rediscovered clinical interest in the trauma has allowed, in addition to a rediscovery of the pioneering studies by Janet and other authors, the introduction in the most recent diagnostic manual, the DSM 5, of the category of dissociative disorders and post-traumatic disorders. Risk factors for dissociation could be found in experiences of lack of emotional-communicative tuning between the child and the figures who daily interact with him. These consequences on the person are reflected on the interpersonal relationships that the person establishes once grown and generate similar situations in other generations. The autors deepen the concept of trauma in a framework that focuses on the understanding of generational interchange. In families with traumatic histories, non-speakable psychic experiences and divided loyalties prevail and can even be defined as fragmented. Fragmented loyalties create family bonds characterized by dis-aggre¬ga¬tion, that is an uncertain terrain on which new generations grow. It is often the younger generations, as described in clinical case, who pay the highest price, especially in terms of the relational context in which they are born.
Keywords: Dissociation, dis-aggregation, trauma, generational inter-change, invisible loyalty, fragmented loyalties.