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