A psychological formulation is a collaborative summary, developed by a psychologist or therapist together with a person, that describes how and why they are experiencing their current difficulties. Unlike a diagnosis, which categorises symptoms into a clinical label, a formulation is a personalised explanation that integrates a person’s history, experiences, beliefs, and current context to make sense of their distress.
What a formulation includes
A formulation typically addresses:
- Predisposing factors: background experiences, personality traits, or vulnerabilities that may have made the person more susceptible to the difficulties they are now experiencing
- Precipitating factors: the events or triggers that brought the difficulties to a head (in the context of SCA, the cardiac arrest itself)
- Perpetuating factors: the thoughts, behaviours, and environmental factors that are maintaining or worsening the difficulties (for example, avoidance of physical activity due to fear of recurrence, or hypervigilance to bodily sensations)
- Protective factors: strengths, relationships, coping strategies, and resources that are helping the person manage
Why formulation matters
A formulation helps both the therapist and the person understand what is happening and why, and guides the choice of therapeutic intervention. It reframes difficulties as understandable responses to difficult circumstances rather than character flaws or evidence of weakness. Sharing and discussing a formulation can itself be therapeutic.
Formulation in cardiac arrest survivors
For survivors experiencing complex combinations of PTSD, anxiety, depression, cognitive change, and identity disruption, a formulation can be particularly valuable in bringing coherence to a confusing and overwhelming set of experiences. It helps identify where to focus therapeutic effort first and what approach is most likely to be helpful.
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