Susan Anderson (psychotherapist)
While Kübler-Ross, Anderson, and others have attempted to define discrete stages of grief, such as an initial period of numbness leading to depression and finally to reorganization and recovery, most modern grief specialists recognize the variations and fluidity of grief experiences, that differ considerably in intensity and length among cultural groups and from person to person. No grief stage theory has been able to account for how people cope with loss, why they experience varying degrees and types of distress at different times, and how or when they adjust to a life without their loved one over time.
Christina Rasmussen
Rasmussen's model of grief operates on the assumption of psychological resilience, echoing the theories introduced by George Bonanno, a professor of clinical psychology at the Teachers College of Columbia University. Her theories conflict with popularized concepts of grief stemming from the 1917 and 1969 publications of "Mourning and Melancholia" and "On Death and Dying" by Sigmund Freud and Elizabeth Kübler-Ross, respectively. The defining characteristic of the model proposed by "Second Firsts" is the view of loss as a catalyst for change and self-growth.