Bipolar and Depressive Disorders Flashcards
manic episode characteristics
- abnormally and persistently elevated, expansive, or irritable mood
- increased activity or energy for at least one week
- three or more characteristic symptoms (e.g., inflated self-esteem or grandiosity, decreased need for sleep, flight of ideas)
- marked impairment in functioning
- a need for hospitalization to avoid harm
- the presence of psychotic features
hypomanic episode characteristics
- an abnormally and persistently elevated, expansive, or irritable mood
- increased activity or energy
- three or more symptoms of mania
- at least four consecutive days
- Symptoms are not severe enough to cause impairment or hospitalization
- does not include psychotic features.
major depressive episode characteristics
- five or more characteristic symptoms
- at least one symptom is depressed mood or loss of interest/pleasure in activities
- Symptoms last at least two weeks
- cause significant distress and/or impaired functioning
diagnoses in the Bipolar disorders category
bipolar I
bipolar II
cyclothymic disorder
bipolar I diagnosis
- at least one manic episode
* may or may not have been preceded or followed by one or more major depressive or hypomanic episodes
bipolar II diagnosis
- at least one hypomanic episode
* at least one major depressive episode
cyclothymic disorder diagnosis
- numerous periods of hypomanic symptoms that do not meet the criteria for a hypomanic episode
- numerous periods of depressive symptoms that do not meet the criteria for a major depressive episode
- minimum duration of symptoms is two years for adults, one year for children/adolescents
etiology of bipolar disorder
Bipolar disorder has been linked to heredity, neurotransmitter and brain abnormalities, and circadian rhythm irregularities
bipolar disorder twin study concordance rates
monozygotic: .67 to 1.0
dizygotic: about .20
neurotransmitters affecting bipolar disorder
norepinephrine, serotonin, dopamine, and glutamate
areas of structural and functional abnormalities linked to bipolar disorder
prefrontal cortex, amygdala, hippocampus, and basal ganglia
circadian rhythm irregularities linked to bipolar disorder
sleep-wake cycle, the secretion of hormones, appetite, and core body temperature
Evidence-based psychosocial interventions for bipolar disorder
- family focused therapy
- psychoeducation
- interpersonal and social rhythm therapy
- cognitive-behavior therapy
pharmacotherapy treatments for bipolar disorder
- lithium for classic bipolar presentation
* anticonvulsant and second generation antipsychotic drugs for atypical bipolar disorder
“classic” bipolar presentation (not DSM 5)
- separation of manic/hypomanic and depressive episodes by long periods of recovery
- low likelihood of mixed mood states and rapid cycling
- onset between 15 and 19 years of age