Interpersonal Psychotherapy
Symptoms are treated as an illness that is not the patient’s fault, and the treatment works on the current interpersonal context in which the illness arose — one of four problem areas, chosen deliberately and held to for the whole of a time-limited course.
Depression is a medical illness that happens in an interpersonal context. Change the context.
Who built it
Gerald L. Klerman
1928–1992Psychiatrist, Harvard
Designed IPT as a credible psychotherapy comparison condition for antidepressant trials — and found it worked. The origin story matters: IPT was built to be testable from the first day.
IPTMyrna M. Weissman
Epidemiologist and psychologist, Columbia
Co-developer; drove the manualisation, the adaptations to adolescents, perinatal depression, eating disorders and PTSD, and the global dissemination including the WHO group protocols.
IPTJohn C. Markowitz
Psychiatrist, Columbia
Extended IPT to PTSD, dysthymia and personality disorder; a leading contemporary theorist of the approach and its evidence base.
IPT
Theory of personality
IPT is unusual and deliberately modest: it does not have a theory of personality, and it says so. Klerman and Weissman built a treatment on two empirical observations rather than on a theory of mind — that interpersonal events precede depressive episodes, and that social support buffers against them. Everything else was left out on purpose.
Attachment and social theory
What theoretical background exists is drawn from Bowlby’s attachment theory, Sullivan’s interpersonal psychiatry and Meyer’s psychobiology: humans need attachment bonds, disruption of those bonds produces distress, and the resulting distress interferes with the relationships that would otherwise repair it.
Theory of psychopathology
The medical model is used explicitly and therapeutically. The patient is told they have an illness, that the illness is not their fault, and that they are being given the "sick role" — a temporary, legitimate status that reduces the expectation of normal functioning while treatment proceeds.
The four problem areas
IPT does not treat depression in general. It selects one interpersonal context and holds to it, and the selection is the most consequential clinical decision in the treatment.
| Problem area | Choose when | Goals |
|---|---|---|
| Grief (complicated bereavement) | Symptoms began around a death and mourning has not completed | Facilitate mourning, including ambivalent feelings; rebuild interests and relationships |
| Role dispute | A significant relationship contains non-reciprocal expectations | Identify the stage — renegotiation, impasse, dissolution — and move it; improve communication |
| Role transition | Symptoms follow a life change: job, illness, migration, parenthood, retirement | Mourn the lost role; develop skills and attachments for the new one |
| Interpersonal deficits / sensitivity | Longstanding isolation with no acute precipitant | Reduce isolation, build relationships. The weakest area — use only when the others do not fit |
Theory of change
IPT does not claim that interpersonal problems cause depression, and its developers are careful about this. The claim is that the two are linked, and that changing the interpersonal situation relieves the depression — regardless of which came first. That agnosticism is deliberate and defensible.
- 1The illness is named and the sick role given, which relieves self-blame and creates room to work.
- 2A single interpersonal focus is agreed, which makes brief treatment possible.
- 3The link between mood and interpersonal events is tracked continuously and explicitly.
- 4Communication and expectations are changed through analysis, role-play and rehearsal.
- 5Social support is expanded, which is both an outcome and a mechanism.
- 6The time limit creates urgency and mobilises action; the ending is itself a role transition, worked as such.
Key concepts
The vocabulary you need to read the literature and to be understood in supervision.
Where it sits in the transtheoretical grid
Which change processes the system leans on, and at what level of content it aims.
- Consciousness raising
Increasing information about oneself and the problem - feedback, interpretation, education, observation.
- Environmental reevaluation
Appraising how the problem affects one’s physical and social environment, including the people in it.
- Helping relationship
Being open and trusting about problems with someone who cares; the relationship as vehicle, and as medicine in its own right.
- Social liberation
Increasing the alternatives available in the social environment; advocacy, empowerment, changing conditions rather than persons.
- Self-liberation (choosing)
Choosing and committing to act, plus the belief that one can change - the deliberate exercise of agency.
- Current interpersonal conflicts
- Symptom & situational problems
- Family / systems conflicts