Ch. 16 Depressive Disorders Flashcards
(101 cards)
Mood vs. Affect
Mood is a pervasive and sustained emotion that may have a major influence on a person’s perception of the world. Examples of mood include depression, joy, elation, anger, and anxiety.
Affect is described as the external, observable emotional reaction associated with an experience. A flat affect describes someone who lacks emotional expression and is often seen in severely depressed clients.
Depression is…
An alteration in mood that is expressed by feelings of sadness, despair, and pessimism. There is a loss of interest in usual activities, and somatic symptoms may be evident. Changes in appetite, sleep patterns, and cognition are common.
Comorbidities of depression
Anxiety disorders
Psychotic disorders (Schizophrenia)
Substance use disorders (Alcohol = depressant)
Eating disorders
Personality disorders
Who does depression affect?
Age and Gender
Socioeconomic Factors
Race and Culture
Marital Status
- Lifetime prevalence of depressive disorders is higher in those aged 45 years or younger
- Research indicates that the incidence of depressive disorder is higher in women than it is in men by almost 2 to 1
- Results of some studies have indicated an inverse relationship between social class and report of depressive symptoms. However, there has yet to be a definitive causal understanding in the socioeconomic status-mental illness relationship.
- No consistent relationship with race and culture
- A number of studies have suggested that marriage has a positive effect on the psychological well-being
- Studies have suggested that marital status alone is not a valid indicator of risk for depression
How does seasonality affect depression?
What could benefit those experiencing seasonal depression?
Affective disorders are more prevalent in the Winter and in the Fall.
The reported benefits of light therapy seem to support a seasonal cause for depression during winter months when there may be less exposure to natural sunlight
Major Depressive Disorder is…
- Characterized by depressed mood or loss of interest or pleasure in usual activities.
- Evidence will show impaired social and occupational functioning that has existed for at least 2 weeks, no history of manic behavior, and symptoms that cannot be attributed to use of substances or a general medical condition.
Diagnostic Criteria of Major Depressive Disorder
A. Five (or more) of the following symptoms have been present during the same 2-week period and represent a change from previous functioning; at least one of the symptoms is either (1) or (2)
- 1.Depressed mood most of the day, nearly every day, as indicated by either subjective report (e.g., feels sad, empty, or hopeless) or observation made by others (e.g., appears tearful)
- 2. Markedly diminished interest or pleasure in all, or almost all, activities most of the day, nearly every day (as indicated by either subjective account or observation)
- 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. Psychomotor agitation or retardation nearly every day (observable by others, not merely subjective feelings of restlessness or being slowed down)
- 6. Fatigue or loss of energy nearly every day
- 7. Feelings of worthlessness or excessive or inappropriate guilt (which may be delusional) nearly every day (not merely self-reproach or guilt about being sick)
- 8. Diminished ability to think or concentrate, or indecisiveness, nearly every day (either by subjective account or as observed by others)
- 9. Recurrent thoughts of death (not just fear of dying), recurrent suicidal ideation without a specific plan, or a suicide attempt or a specific plan for committing suicide
B. The symptoms cause clinically significant distress or impairment in social, occupational, or other important areas of functioning.
C. The episode is not attributable to the physiological effects of a substance or another medical condition.
D. The episode is not attributable to the physiological effects of a substance or another medical condition.
E. There has never been a manic episode or a hypomanic episode.
Specify:
- With anxious distress
- With mixed features
- With melancholic features
- With atypical features
- With mood-congruent psychotic features
- With mood-incongruent psychotic features
- With catatonia
- With peripartum onset
- With seasonal pattern
Persistent Depressive Disorder (Dysthymia) is…
Age of onset
- Characteristics are similar to, if somewhat milder than, MDD
- Individuals with this mood disturbance describe their mood as sad or “down in the dumps.”
- There is no evidence of psychotic symptoms.
- The essential feature is a chronically depressed mood (or possibly an irritable mood in children or adolescents) for most of the day, more days than not, for at least 2 years (1 year for children and adolescents).
- Early onset: before 21
- Late onset: after 21
Diagnostic Criteria for Persistent Depressive Disorder (Dysthymia)
A. Depressed mood for most of the day, for more days than not, as indicated by either subjective account or observation by others, for at least 2 years.
B. Presence, while depressed, of two (or more) of the following:
- 1. Poor appetite or overeating
- 2. Insomnia or hypersomnia
- 3. Low energy or fatigue
- 4. Low self-esteem
- 5. Poor concentration or difficulty making decisions
- 6. Feelings of hopelessness
C. During the 2-year period of the disturbance, the individual has never been without the symptoms in A and B for more than 2 months at a time.
D. Criteria for a major depressive disorder may be continuously present for 2 years.
E. There has never been a manic episode or a hypomanic episode, and criteria have never been met for cyclothymic disorder.
F. The disturbance is not better explained by a persistent schizoaffective disorder, schizophrenia, delusional disorder, or other specified or unspecified schizophrenia spectrum and other psychotic disorder.
G. The symptoms are not attributable to the physiological effects of a substance (e.g., a drug of abuse, a medication) or another medical condition (e.g., hypothyroidism).
H. The symptoms cause clinically significant distress or impairment in social, occupational, or other important areas of functioning.
Specify if…
- With anxious distress
- With mixed features
- With melancholic features
- With atypical features
- With mood-congruent/mood-incongruent psychotic features
- With peripartum onset
- Partial/full remissions
- Early or late onset (before or after 21 years old)
- Mild, moderate, severe
- With pure dysthymic syndrome
- With persistent major depressive episode
- With intermittent major depressive episodes, with or without current episode
Premenstrual Dysphoric Disorder is…
- Markedly depressed mood, excessive anxiety, mood swings, and decreased interest in activities during the week prior to menses, improving shortly after the onset of menstruation, and becoming minimal or absent in the week postmenses
- Different from Premenstrual mood changes: intensity and frequency of symptoms.
- Symptoms of PMDD are severe enough to interfere with one’s ability to function socially, at work, or at school and they are recurrent for the majority of menstrual cycles over the course of a year.
Substance/Medication-Induced Depressive Disorder is…
Meds that evoke mood symptoms:
- Symptoms are a direct result of physiological effects of a substance.
- This disorder causes clinically significant distress or impairment in social, occupational, or other important areas of functioning.
- The depressed mood is associated with intoxication or withdrawal from substances such as alcohol, amphetamines, cocaine, hallucinogens, opioids, phencyclidine-like substances, sedatives, hypnotics, or anxiolytics.
- Symptoms meet criteria for MDD
Meds that evoke mood symptoms: - Anesthetics, analgesics, anticholinergics, anticonvulsants, antihypertensives, antiparkinsonian agents, antiulcer agents, cardiac medications, oral contraceptives, psychotropic medications, muscle relaxants, steroids, and sulfonamides.
Depressive Disorder Due to Another Medical Condition
Examples of medical conditions that influence depression
- Symptoms associated with a major depressive episode that are the direct physiological consequence of another medical condition
- Causes clinically significant distress or impairment in social, occupational, or other important areas of functioning
- Examples of medical conditions that influence depression include stroke, traumatic brain injuries, thyroid disorders, Cushing’s disease, Huntington’s disease, Parkinson’s disease, and multiple sclerosis.
Predisposing Factors of Depression
Genetics
- Twin studies suggest a strong genetic factor in the etiology of affective illness, including depressive disorders and bipolar disorders.
- Family studies have shown that major depression is seven times more common among 1st degree biological relatives of people with the disorder than among the general population
- Adoption studies
Predisposing Factors of Depression
Biochemical Influences
It has been hypothesized that depressive illness may be related to a deficiency of the neurotransmitters norepinephrine, serotonin, and dopamine at functionally important receptor sites in the brain.
Cholinergic transmission (acetylcholine) is thought to be excessive in depression
Predisposing Factors of Depression
Neuroendocrine Disturbances
Hypothalamic-Pituitary-Adrenocortical Axis
- Hypersecretion of cortisol
- This elevated serum cortisol is the basis for the dexamethasone suppression test that is sometimes used to determine if an individual has somatically treatable depression.
Hypothalamic-Pituitary-Thyroid Axis
- Diminished TSH response is observed in some individuals with depression
- Individuals with hypothyroidism often manifest with signs of depression
Predisposing Factors of Depression
Physiological Influences
Medication Side Effects
A number of drugs, either alone or in combination with other medications, can produce a depressive syndrome.
- Antibacterial, antifungal, and antiviral agents
- Antibacterial, antifungal, and antiviral agents
- Antineoplastics (including vincristine and zidovudine)
- Dermatologics (including Accutane and finasteride)
- Hormones (including contraceptives)
- Respiratory agents (leukotriene inhibitors)
- Statins
- Steroids
- Smoking cessation agents (varenicline)
- Anticonvulsants
Predisposing Factors of Depression
Physiological Influences
Neurological Disorders
Electrolyte Disturbances
Hormonal Disturbances
Nutritional Deficiencies
Physiological Conditions
Inflammation
- Neurological disorders: CVA, brain tumors, Alzheimer’s disease, Parkinson’s disease, Huntington’s disease, Multiple Sclerosis
- Electrolyte Disturbances: Excessive levels of sodium bicarbonate or calcium, Potassium excess or depletion
- Hormonal disturbances: Cushing’s, Addison’s, hypoparathyroidism, hypothyroidism, and hyperthyroidism, imbalance of the hormones estrogen and progesterone (PMDD)
- Nutritional Deficiencies: Deficiencies in proteins, carbohydrates, vitamin B1 (thiamine), vitamin B2 (riboflavin), vitamin B6 (pyridoxine), vitamin B9 (folate), vitamin B12, iron, zinc, calcium, chromium, iodine, lithium, selenium, and potassium
- Physiological Conditions: Lupus, polyarteritis nodosa, CVD, infection, metabolic disorders
- Role of Inflammation: function of immune system in psychiatric disorders; ndividuals with treatment-resistant depression manifest with high CRP and TNF (biomarkers of inflammation
Psychoanalytical Theory behind depression
Freud
- He observed that “melancholia” occurs after the loss of a loved object, either actually by death or emotionally by rejection, or the loss of some other abstraction of value to the individual.
- Freud indicated that the depressed patient’s rage is internally directed because of identification with the lost object
- He postulated that once the loss had been incorporated into the self (ego), the hostile part of the ambivalence that had been felt for the lost object is then turned inward against the ego.
Learning Theory behind depression
- “Learned helplessness”
- State of helplessness that exists in humans who have experienced numerous failures (either real or perceived). The individual abandons any further attempt to succeed.
- Learned helplessness predisposes individuals to depression by imposing a feeling of lack of control over their life situation.
- They become depressed because they feel helpless; they have learned that whatever they do is futile.
Object Loss Theory behind depression
- The theory of object loss suggests that depressive illness occurs as a result of having been abandoned by or otherwise separated from a significant other during the first 6 months of life.
- This absence of attachment, which may be either physical or emotional, leads to feelings of helplessness and despair that contribute to lifelong patterns of depression in response to loss.
- Object loss theory suggests that loss in adult life afflicts people much more severely in the form of depression if the individuals have suffered early childhood loss.
Cognitive Theory behind depression
- Theory suggesting that the primary disturbance in depression is cognitive rather than affective.
- The underlying cause of the depression is cognitive distortions that result in negative, defeated attitudes.
- 3 cognitive distortions that are the basis for depression
1. Negative expectations of the environment
2. Negative expectations of the self
3. Negative expectations of the future - These cognitive distortions arise out of a defect in cognitive development, and the individual feels inadequate, worthless, and rejected by others. Outlook for the future is one of pessimism and hopelessness.
- Depression is the product of negative thinking.
Symptoms of depression in children up to 3 years old
Signs may include
- Feeding problems
- Tantrums
- Lack of playfulness and emotional expressiveness
- Failure to thrive
- Delays in speech and gross motor development.
Symptoms of depression from ages 3 to 5
Common symptoms may include
- Accident proneness
- Phobias
- Aggressiveness
- Excessive self-reproach for minor infractions.
Symptoms of depression from ages 6 to 8
These children may have…
- Vague physical complaints
- Display aggressive behavior.
They may…
- Cling to parents
- Avoid new people and challenges.
- Lag behind their classmates in social skills and academic competence.