Chapter 7 Flashcards
What were mood disorders formerly called?
Affective disorders
Mood disorders
Disturbances of mood that are intense and persistent enough to lead to serious problems in relationships and work performance. They are diverse in nature. In all mood disorders, extremes of emotion or affect, soaring elation or deep depression, dominate the clinical picture. Other symptoms are also present but abnormal mood is the defining feature. The two key moods involved in mood disorders are depression and mania. Normal mood states can occur between both types of episodes. Sometimes a person may have symptoms of mania and depression during the same time.
Depression in the mood disorders
Involves feelings of extraordinary sadness and rejection
Mania in mood disorders
Characterized by intense and unrealistic feelings of excitement and euphoria
Mixed episode cases of mood disorders
Sometimes an individual may have symptoms of mania and depression during the same time. The person experiences rapidly alternating moods such as sadness, euphoria, and irritability, all within the same episode of illness
Types of mood disorders
Unipolar depressive disorders
Bipolar and related disorders
Unipolar depressive disorders
In which a person experiences only depressive episodes
Bipolar and related disorders
In which a person experiences both depressive and manic episodes
Depressive episode
Involved in The most common form of a mood disturbance. Where a person is markedly depressed or loses interest in formally pleasurable activities or both for at least two weeks, as well as other symptoms such as changes in sleep or appetite or feelings of worthlessness
Manic episode
The other primary kind of mood episode. Where a person shows a marketly elevated, euphoric or expensive mood, often interrupted by occasional outbursts of intense ear debility or even violence; particularly when others refuse to go along with the manic persons wishes and schemes. These extreme moods must persist for at least a week for this diagnosis to be made. Also three or more additional symptoms must occur in the same time period, ranging from behavioural symptoms such as notable increase in goal directed activity, to mental symptoms where self-esteem becomes grossly inflated and mental activity may speed up, to physical symptoms such as decreased need for sleep
Hypomanic episode
A milder form of a manic episode. Where a person experiences abnormally elevated, expansive or irritable mood for at least four days. Also the person must have at least three other symptoms similar to those involved in mania but to a lesser degree: inflated self-esteem, decreased need for sleep, flights of ideas, pressured speech etc. There is much less impairment in social and occupational functioning in hypomania and hospitalization is not required
DSM five criteria for major depressive disorder
A. Five or more of the following symptoms have been present during the same two week period and represent a change from previous functioning; at least one of the symptoms as either depressed mood or loss of interest or pleasure:
1. Depressed mood most of the day, nearly every day, as indicated by either subjective report or observation made by others
2. Markedly diminished interest or pleasure in all or almost all activities most of the day, nearly every day
3. Significant weight loss when not dieting or weight gain, or decrease or increase in appetite nearly every day
4. Insomnia or hypersomnia nearly every day
5. Psycho motor agitation or retardation nearly every day
6. Fatigue or loss of energy nearly every day
7. Feelings of worthlessness or excessive or inappropriate guilt nearly every day
8. Diminished ability to think or concentrate or indecisiveness nearly every day
9. Recurrent thoughts of death, recurrent suicidal ideation without a specific plan, or a suicide attempt or a specific plan
B. The symptoms caused clinically significant distress or impairment in social, occupational or other important areas a functioning
C. The episode is not attributable to the physiological effects of a substance or another medical condition
D. The occurrence of the major depressive episode is not better explained by schizoaffective disorder, schizophrenia, schizophreniform disorder, delusional disorder or other specified or unspecified schizophrenia spectrum or other psychotic disorders
E. There has never been a manic episode or a hypomanic episode
Major depressive disorder symptoms and responses to a significant loss
Responses to a significant loss may include the feelings of intense sadness, rumination about the loss, insomnia, poor appetite, and weight loss which may resemble a depressive episode. Although such symptoms may be understandable or considered appropriate to the loss, the presence of a major depressive episode in addition to the normal responses to a significant loss should also be carefully considered. This decision inevitably requires the exercise of clinical judgement based on the individuals history and the cultural norms for the expression of distress in the context of loss
Prevalence of mood disorders: Unipolar Major depression
Mood disorders occur at least 15 to 20 times more frequently than schizophrenia and at almost the same rate as all anxiety disorders it taken together. Major depressive disorder is the most common and its occurrence has increased in recent decades. The lifetime prevalence rates of unipolar major depression are 17%, with 12 months prevalence rates nearly 7%. Worldwide mood disorders are the second most prevalent type of disorder following anxiety disorders with a 12 month prevalence ranging from 1 to 10% across different countries.
Gender differences in unipolar major depression
Rates for unipolar major depression are higher for women than for men, usually about two to one, Similar to sex differences for most anxiety disorders. These differences occur in most countries around the world. In the US, this sex difference starts in adolescence and continues until about age 65, when it seems to disappear. Get among school children, boys are equally likely or slightly more likely to be diagnosed with depression
Prevalence rates of bipolar disorder
The lifetime risk of developing the classic form of this disorder is about 1% and there is no discernable difference in the prevalence rates between sexes.
Race differences of mood disorders in US residents
Mood disorders occur less frequently among African-Americans then among European white Americans and Hispanics, whose rates are comparable. Native Americans have significantly elevated rates compared to white Americans. There are no significant differences among such groups for bipolar disorder
DSM five criteria for manic episode
A. A distinct period of abnormally and persistently elevated, expansive or irritable mood and abnormally and persistently increased goal directed activity or energy, lasting at least one week and present most of the day, nearly every day
B. During the period of mood disturbance and increased energy or activity, three or more of the following symptoms (four if mood is only irritable) are present to a significant degree and represent a noticeable change from usual behavior:
1. Inflated self-esteem or grandiosity
2. Decreased need for sleep
3. More talkative than usual or pressure to keep talking
4. Flight of ideas or subjective experiences that thoughts are racing
5. Distractibility, as reported or observed
6. Increase in goal directed activity or psycho motor agitation
7. Excessive involvement in activities that have a high potential for painful consequences
C. The mood disturbance is sufficiently severe to cause marked impairment in social or occupational functioning or two necessitate hospitalization to prevent harm to self or others, or there are psychotic features
D. The episode is not attributable to the physiological effects of a substance or to another medical condition
Manic episodes that emerged during anti-depressant treatment
A full manic episode that emerges during antidepressant treatment but persists at a fully syndromal multilevel beyond the physiological effect of that treatment is sufficient evidence for a manic episode and therefore a bipolar one diagnosis
Rates of unipolar depression and a Socio economic status
Rates of unipolar depression are inversely related to Socio economic status; higher rates occur and lower socioeconomic groups. This may be because low socioeconomic status leads to adversity and life stress. However in spite of earlier indications that rates of bipolar disorder are elevated among those in a higher socio economic groups, current evidence from a carefully controlled studies has not found bipolar disorder to be related to Socio economic class
Mood disorders and individuals who have high levels of accomplishment in the arts
A good deal of evidence has shown that both unipolar and bipolar disorder, but especially bipolar disorder, occur with alarming frequency in poets, writers, composers and artists. For a number of such famous creative individuals, their periods of productivity co-vary with the manic or hypo manic, and depressive phases of their illnesses. One possible hypothesis to explain this relationship is that mania or hypomania actually facilitates the creative process or that the intense negative emotional experiences of depression provide material for creative activity. A study of eminent poet Emily Dickinson provides support for the latter part of this hypothesis; evidence supports the idea that Dickinsons painful experiences with panic disorder and depression provided ideas for her work during those times. Also her hypo manic symptoms increased her motivation and output but not her creativity per se
Normal depression
Mild and brief depression may actually be normal and adaptive in the long run. By slowing us down, mild depression sometimes saves us from wasting a lot of energy in the futile pursuit of unattainable goals. Usually normal depressions would be expected to occur in people undergoing painful but common life events such as significant personal, interpersonal or economic losses
What does the diagnostic criteria for major depressive disorder require?
It requires that a person must be in a major depressive episode and never have had a manic, hypo manic or mixed episode
Depression and anxiety
Few depressions, including milder ones, occur in the absence of significant anxiety. There is a high degree of overlap between measures of depressive and anxious symptoms in self reports and clinician ratings. There are very high levels of comorbidity between depressive and anxiety disorders. The issues surrounding the cooccurrence of depression and anxiety have received a great deal of attention in recent years and are very complex