Symptoms
The DSM-IV-TR defines Atypical Depression as a subtype of Major Depressive Disorder with Atypical Features, characterized by:
a) Mood reactivity (i.e., mood brightens in response to actual or potential positive events)
b) At least two of the following:
- Significant weight gain or increase in appetite;
- Hypersomnia (sleeping too much, as opposed to the insomnia present in melancholic depression);
- Leaden paralysis (i.e., heavy, leaden feelings in arms or legs);
- Long-standing pattern of interpersonal rejection sensitivity (not limited to episodes of mood disturbance) that results in significant social or occupational impairment.
c) Criteria are not met for Melancholic Depression or Catatonic Depression during the same episode.
Read more about this topic: Atypical Depression
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