Research has revealed that almost half of relationships will end in divorce or separation when one member experiences a head injury. Many patients are not diagnosed initially, or for several months or years after their injury. Persons dealing with the numerous long-term cognitive and physical problems accompanying mild traumatic brain injury (MTBI) may develop a profound sense of "loss of self." This loss of self, manifest as identity ambiguity on the part of the MTBI subject may be strongly correlated with perceptions of boundary ambiguity on the part of the subject and family resulting from the situation of ambiguous loss. Early recognition and intervention may prevent ...