What kind of depression is unipolar?

What kind of depression is unipolar?

• A. Depression that stems from a single event in ones life
• B. Depression that includes only extreme sadness as a symptom
• C. Depression that occurs due to the lengthy absence of sunlight during the winter
• D. Depression that occurs without periods of mania

Answer: (D)

Unipolar depression is defined by depressive episodes that occur without any manic or hypomanic periods. The key distinction is the absence of elevated mood states, which sets it apart from bipolar disorders where mood swings include mania or hypomania. That’s why the description “Depression that occurs without periods of mania” best captures what unipolar means. The other options don’t fit because they describe features that aren’t defining: depression can be triggered by life events but that isn’t what unipolar refers to; depression involves more symptoms than just sadness (sleep changes, fatigue, appetite changes, anhedonia, etc.); and seasonal patterns describe when symptoms occur rather than the mood-polarity distinction that defines unipolar versus bipolar.

Unipolar depression is defined by depressive episodes that occur without any manic or hypomanic periods. The key distinction is the absence of elevated mood states, which sets it apart from bipolar disorders where mood swings include mania or hypomania. That’s why the description “Depression that occurs without periods of mania” best captures what unipolar means. The other options don’t fit because they describe features that aren’t defining: depression can be triggered by life events but that isn’t what unipolar refers to; depression involves more symptoms than just sadness (sleep changes, fatigue, appetite changes, anhedonia, etc.); and seasonal patterns describe when symptoms occur rather than the mood-polarity distinction that defines unipolar versus bipolar.