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Side-by-side review
Find the deciding clinical difference.
Ask this
Is the central pattern “non-reactive, biologically patterned depression” or “reactive mood with a characteristic symptom pattern”?
Most useful distinction
Melancholic features centres on non-reactive, biologically patterned depression, whereas Atypical features centres on reactive mood with a characteristic symptom pattern.
Common confusion
Severity alone does not establish melancholic features. The label does not simply mean an unusual presentation.
Treatment difference
Document the biological and psychomotor pattern because it may influence treatment intensity and monitoring. Capture the reactive and reversed-vegetative pattern without using “atypical” to mean unusual or mild.
Profound loss of pleasure or mood reactivity occurs with a characteristic biological and psychomotor pattern.
Episode featuresMood reactivity occurs with a characteristic reversed-vegetative or interpersonal sensitivity pattern.
Episode features