We move house, change jobs, begin new relationships, yet most of the time, most of us still experience a thread of inner continuity – a constant feeling of me-ness that transcends the various chapters of our lives. Indeed, there’s evidence that having a stable, constant sense of self and identity is important for psychological wellbeing. However, this thread can rupture, leading to an uncomfortable disconnect between who we feel we are today, and the person that we believe we used to be – a state that psychologists recently labelled “derailment”.
Now in a paper in Clinical Psychological Science a group led by Kaylin Ratner at Cornell University has explored the possibility that derailment both precipitates, and is a consequence of, depression. After all, people with depression often struggle with motivation, losing the will to pursue goals they previously held dear. They also frequently withdraw from their relationships and social roles. All of these changes could trigger sensations of derailment. Or perhaps derailment comes first, with the inner disorientation leaving one vulnerable to depression. Surprisingly these questions have been little studied before now. “We nominate derailment as a new feature of the depressive landscape and underscore the need for greater empirical and practical attention at the crossroads of mental health and human development,” Ratner and her team write.