(F34) Persistent mood disorders
This group of mood disorders is characterized by, on one had, their strong persistence trait, and on the other fluctuations in the affective sphere of the individual. However, this is not expressed to a sufficient amount so that the given disorders could be differentiated as hypomanic or mild depressive episodes. Significant trait of persistent mood (affective) disorders is that they tend to last over a period of several years. This is the reason why people who suffer from cyclothymia or dysthymia to a certain degree experience difficulties in efficient daily activities performance.
a) Cyclothymia is the term marking a mood disorder characterized by persistent mood instability. Namely, affect oscillates between mild depression to elation. Most commonly it develops in early adult age and is chronic. From time to time those persons experience states of remission (complete withdrawal of mood disorder symptomatology) that can last even several months. Typical for cyclothymia is that people who suffer from it register the mentioned mood oscillations appearing without any connection to stimuli coming from the external reality. In cyclothymia mood shifts are usually mild, and periods of elation can be even pleasant.
b) Dysthymia stands for a chronic depressive state which in a given moment does not meet the criteria of depressive episode, or a recurrent depressive disorder. However, at the very occurrence of dysthymia it is not unusual that psychopathological symptomatology of a mild depressive disorder is registered. Time periods between phases of depressive mood and the ones when the individual does not express signs of affect disorder are very variable. It is common for those persons to feel well over a period of several days or weeks. Yet, data is gathered that over a period of several months they usually feel fatigue and depression. They tend to complain and often suffer from
sleep disorders. However, it is important to note that people with dysthymia are capable to be engaged in daily life activities without significant hardships. Another trait of this mood disorder is that it usually breaks out in early adult age and lasts over a period of at least several years.
Manic episode
Bipolar affective disorder
Depressive episode
Recurrent depressive disorder
Persistent mood disorders