Mood disorders (affective disorders) include depressive illness and mania. These are episodic conditions, occurring only once or twice in a lifetime for some patients but recurring at frequent intervals for others, usually with good recovery between episodes.
• Unipolar affective disorder: single or recurrent depressive episode(s), without manic ones. This forms the vast majority of patients with affective disorders.
• Bipolar affective disorder (formerly called manic depressive psychosis): both depressive and manic episodes. This is much less common than unipolar depression, but is more serious in most cases.
Patients with manic episodes only are very rare. Mixed affective states can also occur, usually in the context of bipolar disorder.
The milder forms of depression are also considered in this chapter. In this book, anxiety disorders, although sometimes classed with mood disorders, will be considered with the neuroses (see Chapter 6).
Hughes' Outline of Modern Psychiatry, Fifth Edition. David Gill. © 2007 John Wiley & Sons, Ltd ISBN 9780470033920
Was this article helpful?