A person who’s depressed has depression; a person who has episodes of depression and episodes of mania is known as bi-polar. Is there anyone that suffers only from episodes of mania? What are these people called?
WRS
In my company they’re called executives.
I’ve seen it referred to as unipolar mania before. Here is one study trying to prove the existence of unipolar mania. Here is another study that appears to show the existence of the disorder: http://bjp.rcpsych.org/cgi/content/abstract/164/4/547
One more: an Australian site listing the different types of bipolar and unipolar disorders.