Depression Flashcards
Depression:
Depression (major depressive disorder or clinical depression) is a common but serious mood disorder. It causes severe symptoms that affect how you feel, think, and handle daily activities, such as sleeping, eating, or working. To be diagnosed with depression, the symptoms must be present for at least two weeks.
Depression statistics
Major depressive disorder affects approximately 14.8 million American adults, or about 6.7 percent of the U.S. population age 18 and older, in a given year. The average age of onset is 32. 1 and 8 adolescents have clinical depression. People who have depression are 4 times as likely to have a heart attack.
Depression symptoms:
- Persistent sad, anxious, or “empty” mood 2. Feelings of hopelessness, or pessimism 3. Irritability 4. Feelings of guilt, worthlessness, or helplessness 5. Loss of interest or pleasure in hobbies and activities 6. Decreased energy or fatigue 7. Moving or talking more slowly 8. Feeling restless or having trouble sitting still 9. Difficulty concentrating, remembering, or making decisions 10. Difficulty sleeping, early-morning awakening, or oversleeping 11. Appetite and/or weight changes 12. Thoughts of death or suicide, or suicide attempts 13. Aches or pains, headaches, cramps, or digestive problems without a clear physical cause and/or that do not ease even with treatment
Depression causes:
Combination of: genetics (about 40%) environment biology psychology Nutritional deficiencies
Depression other causes
Damage to the cerebellum
Genetic Causes
variation among the serotonin transporter (5-HTT) gene affects the chances that people who have dealt with very stressful life events will go on to experience depression. To be specific, depression may follow such events, but seems more likely to appear in people with one or two short alleles of the 5-HTT gene
monoamine hypothesis
states that a deficiency of certain monoamine neurotransmitters is responsible for depression. E.G. serotonin, norepinephrine, and dopamine
Diathesis-stress model depression
specifies that depression results when a preexisting vulnerability, or diathesis, is activated by stressful life events. The preexisting vulnerability can be either genetic, implying an interaction between nature and nurture, or schematic, resulting from views of the world learned in childhood.
Depression risk factors:
Personal or family history of depression
Major life changes, trauma, or stress
Certain physical illnesses and medications
Loss of loved one
Early childhood experience (trauma or abuse)
Loneliness and isolation
Lack of social support
relationship problems
Financial strain
Alchohol or drug abuse
Unemployment of underemployment.
Types of depressive disorders:
1.Major depressive disorder 2.Persistent depressive disorder (dysthymia) 3.Psychotic depression 4.Postpartum depression 5.Seasonal affective disorder (SAD) 6.Bipolar disorder 7.Atypical depression
Seasonal affective disorder (SAD)
is characterized by the onset of depression during the winter months, when there is less natural sunlight. This depression generally lifts during spring and summer. Winter depression, typically accompanied by social withdrawal, increased sleep, and weight gain, predictably returns every year in seasonal affective disorder.
Psychotic depression
occurs when a person has severe depression plus some form of psychosis, such as having disturbing false fixed beliefs (delusions) or hearing or seeing upsetting things that others cannot hear or see (hallucinations). The psychotic symptoms typically have a depressive “theme,” such as delusions of guilt, poverty, or illness.
Melancholic depression
is characterized by: a loss of pleasure in most or all activities a failure of reactivity to pleasurable stimuli a quality of depressed mood more pronounced than that of grief or loss. worsening of symptoms in the morning hours early-morning waking psychomotor retardation excessive weight loss (not to be confused with anorexia nervosa) excessive guilt
Persistent depressive disorder (also called dysthymia)
is a depressed mood that lasts for at least two years. A person diagnosed with persistent depressive disorder may have episodes of major depression along with periods of less severe symptoms, but symptoms must last for two years to be considered persistent depressive disorder.
Depression treatments:
Medication Psychotherapies (CBT,IPT,PST) Medication + Psychotherapy (most effective) Electroconvulsive therapy (ECT) Transcranial magnetic stimulation (tms)