Introduction Flashcards
What is a diagnosis?
A means of understanding a disorder by identifying clusters of features that reliably co-occur
What should a diagnosis system do?
Indicate causes
Indicates course of the problem
Indicates optimum treatment
Two widely used diagnostic systems
Diagnostic and Statistical Manual (DSM-5)
International Classification of Diseases (ICD-10)
Problems with diagnosis
Clinicians routinely disagree about the case diagnoses
Problems with artificially allocating people to groups that they do not naturally fit
Alternatives to diagnosis for psychological problems
Symptom-centred
Dimension-based
Formulation based approaches
Symptom-centred approach
Can address some symptoms successfully without addressing others
Problems with the symptom-centred approach
Effective in reducing frequency and distress of the symptom but doesn’t necessarily lead to recovery from the wider disorder
This is a problem if residual symptoms result in a relapse
Dimension-based approach
Reduction in unhelpful traits (eg. a reduction in clinical perfectionism)
Commonly used when working with personality disorder pathology
Single or combined dimensional traits used to identify pathological/positive personality types
Formulation-based approach
Commonly used in clinical psychology
Understanding of an individual or disorder based on the interaction of individual and common biopsychosocial factors
The formulation based approach should…
Make sense
Be as simple as possible
Never be assumed to be true
Indicate what changes are needed to help the individual reduce/remove the psychological problem
What structure is the formulation approach based upon?
Antecedent
Behaviour
Consequences
Padesky & Mooney (1990)
The CBT hot cross bun
Homeostatic system, whether healthy or not
Common themes can be found across individuals which map closely to diagnoses
4 parts of the Hot Cross Bun
Cognitions/beliefs
Behaviour
Biology/physiology
Emotions/feelings
Is formulation better than diagnosis?
Psychologists almost universally see formulation as better than diagnosis as it is based on knowledge of the individual and judgement rather than a more mechanistic approach
What are the two criteria to consider to see if the formulation approach is better than the diagnostic approach?
Are we good judges of what will work?
Are our formulations good enough to help the patient?