psychological-problems > three-different-types-of-depression

males and females. It can occur on its own (unipolar) or as part of Bipolar Disorder. Symptoms include:

slowed or agitated physical movements
slowed or impaired mental (cognitive) processing, e.g. poor concentration and memory
insomnia or disrupted of sleep
loss of appetite and energy
mood and energy worse in the morning (e.g. extreme difficulty in getting out of bed or leaving the house)
loss of pleasure, interest and productivity in most things, including social activities, relationships and work, school or uni.

This type of depression responds best to physical treatments, such as antidepressants, and does not usually go away on its own.

Psychotic depression

Psychotic depression is a severe form of depression and is less common than either melancholic or non-melancholic depression. The defining symptoms are:

more severely depressed mood than other types of depression
hallucinations (e.g. hearing voices)
delusions (e.g. extreme or false beliefs of guilt, shame, poverty or illness).
More severe psychomotor disturbances

Psychotic depression does not usually go away on its own. It responds only to physical treatments (such as antidepressant drugs).

(published with permission in writing from:http://www.reachout.com.au/)