Psychology / Unit 12 Psych 1354 short lesson, about 20 seconds
Persistent Depressive Disorder
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The idea
Persistent depressive disorder involves depressed mood lasting at least two years, with symptoms that may be less severe than a major depressive episode.
In practice
A person describes having felt this way for as long as they can recall and treats it as their personality.
Where people slip
Chronic low-grade depression is frequently unreported because the person has no contrasting baseline.
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