Exam 2 Flashcards
What is major depressive episode?
an extreme depression that lasts up to 2+ weeks; duration includes 4 to 9 months if left untreated
What are symptoms of major depressive episode?
Depressed mood*
Loss of interest/pleasure*
Significant weight loss*
Insomnia/hypersomnia*
Psychomotor agitation/retardation*
Fatigue/loss of energy*
Feelings of worthlessness or excessive or inappropriate guilt*
Diminished ability to think/concentrate, or indecisiveness*
Recurrent thoughts of death, recurrent suicidal ideation, suicide attempt*
How long does a major depressive episode last?
2+ weeks
Which two symptoms must be present in major depressive episode?
depressed mood, loss of interest/pleasure
What is a manic episode?
exaggerated elation, joy, euphoria that lasts 7 days; duration includes 3 to 4 months if left untreated
What are the symptoms of manic episodes?
Inflated self-esteem or grandiosity
Decreased need for sleep (e.g., feels rested after 3 hours of sleep)
More talkative than usual or pressure to keep talking
Flight of ideas or subjective experience that thoughts are racing
Distractibility (i.e., attention too easily drawn to unimportant or irrelevant external stimuli)
Increase in goal-directed activity or psychomotor
Excessive involvement in activities that have a high potential for painful consequences
What is hypomanic episode?
shorter, less severe version of manic episodes, lasts at least 4 days, milder symptoms as compared to manic episodes, associated w/ less impairment than a manic episode
What is major depressive disorder?
single episode, lack of mania/hypomania; recurrent 2+ episodes within 2 months apart, typically 4 to 7 episodes within a lifetime
What are two defining features of major depressive disorder?
at least one major depressive episode, lack of manic/hypomanic episode
What are the symptoms for major depressive disorder?
Poor appetite or overeating
Insomnia/hypersomnia
Low energy or fatigue
Low self-esteem
Poor concentration or difficulty making decisions
Feelings of hopelessness
What are symptom specifiers of depression?
psychotic features (hallucinations, delusions)
What is a seasonal pattern of depression?
seasonal affective disorder (SAD)
What is the prevalence of seasonal affective disorder?
2.7%
What are treatment plans for seasonal affective disorder?
melatonin phototherapy and CBT
Describe the onset of depression.
risk increases in adolescence and young adulthood, decreases in middle adulthood, increases again in old age
What is the prevalence of depression?
16%
What is bipolar I disorder?
presence of a manic episode required, presence of a depressive episode considered optional
What is bipolar II disorder?
presence of a hypomanic episode required, presence of a depressive episode required
What is cyclothymic disorder?
alternating manic and depressive episodes; considered less severe, however it persists longer, chronic symptoms last up to 2+ years
What are familial/genetic influences of depression?
higher heritability for females
What are familial/genetic influences of bipolar disorder?
relatively equivalent among males and females
What neurotransmitters influence depression?
serotonin; was initially believed to have influence on depression, however this is now a discontinued thought
What neurotransmitters influence mania?
dopamine
What is the stress hypothesis?
this includes overactive HPA axis, elevated cortisol, suppressed hippocampal neurogenesis
How is brain wave activity relevant to depression/bipolar disorder?
thought to be an indicator of vulnerability