PSYCH 405 CH 7 Flashcards
a low, sad state marked by significant levels of sadness, lack of energy, low self-worth, guilt, or related symptoms
depression
a state or episode of euphoria or frenzied activity in which people may have an exaggerated belief that the world is theirs for the taking
mania
How is a depressive disorder different from normal depression?
normal depression is experienced from time to time, but depressive disorders bring sever and long-lasting psychological pain that intensifies as time goes on
Compare depression rates of poor people vs wealthier people
rate of mild or sever depression is higher among poor people than wealthier people
Which sex is more likely to have unipolar depression? give percentages
women; around 26% women vs 12% men
How many adults in US suffer sever unipolar depression? what about milder forms of depression?
8 % ; 5 %
roughly what percent of people with unipolar depression recover within 6 months?
85%
an inability to experience any pleasure at all
anhedonia
what are some emotional symptoms of depression?
feeling sad and dejected, anhedonia
What are some motivational symptoms?
lack of drive, initiative, spontaneity
ex. force themselves to world, talk, etc
around what % of people with sever depression die by suicide?
6-15%
What are some behavioral symptoms of depressed people?
they move and speak slower
What are some cognitive symptoms of depression?
- they are pessimistic
ex. convinces that nothing will ever improve - likely to procrastinate because they think they are the worst
-complain that intellectual ability is poor, easily distracted - perform poorer and not great memory
physical symptoms of depression:
-frequently have physical ailments as headaches, indigestion, constipation, dizzy spells, general pain
- eat less, sleep less, feel more fatigues than prior to the disorder
According to DSM-5-TR, a period of two or more weeks marked by at least five symptoms of depression, including sad mood and/or loss of pleasure
DSM-5-TR definition of a major depressive episode
bizarre ideas without foundation
delusions
perceptions of things that are not actually present
hallucinations
a sever pattern of depression that is disabling and not caused by such factors as drugs or a general medical condition
major depressive disorder
when a disroder changes with seasons
seasonal disorder
disorder is marked by either immobility or excessive activity
catatonic
disorder occurs during pregnancy or within 4 weeks of giving birth
peripartum
disordered marked by the person is almost totally unaffected by pleasurable events
melancholic
a chronic form of unipolar depression marked by ongoing and repeated symptoms of either major or mild depression
persistent depressive disorder
persistent depressive order combined with repeated major depressive episodes
persistent depressive disorder with major depressive episodes
less severe symptoms of persistent depressive disorder
persistent depressive disorder with dysthymic syndrome
a disorder marked by repeated episodes of significant depression and related symptoms during the week before menustration
premenstrual dysphoric disorder
Why is premenstrual dysphoric disorder controversial?
many clinicians believe it is sexist and pathologies severe cases of premenstrual syndrome– premenstrual discomforts that are common and normal among women
a depressive disorder characterizes by a combination of persistent depressive symptoms and recurrent outbursts of severe temper
disruptive mood dysregulation disorder
an episode of unipolar depression that is triggered by clear-cut stressful events
reactive (exogenous) depression
an episode of unipolar depression that is triggered internal factors
endogenous depression
What type of studies are used to show genetic factors of unipolar depression?
family pedigree, twin studies, gene studies
a type of study that selects people with unipolar depression, examine their relatives, and see whether depression also afflicts other members of the family
family pedigree studies
What did researchers conclude about genetic factors of depressed people?
people who have depression can have many as 30% of their relatives also depressed
a neurotransmitter whose abnormal activity is linked to depression and panic disorder
norepinephrine
A neurotransmitter whose abnormal activity is linked to depression, OCD, and eating disorders
serotonin
What two neurotransmitters have been linked to unipolar depression?
norepinephrine and serotonin
In addition to relieving depression, what else do antidepressants do?
- they increase norepinephrine and/or serotonin activity
a neurotransmitter responsible for stimulating neurons in the brain and promoting connectivity and communications among neurons
glutamate
what neurotransmitters may either reflect or help produce dysfunction of a depression-related circuit in the brain?
norepinephrine, serotonin, glutamate
a route between the brain and the body that brings about the release of hormones at various locations throughout the body, and those hormones spur the assorted body organs into action, causing us to temporarily experience a heightened sense arousal
hypothalamic-pituitayr-adrenal (HPA) axis
What does research suggest about the HPA axis of people with depression?
it is overly active in the face of stress, causing excessive release of cortisol and related hormones at times of stress
networks of brain structure that work together, triggering each other into action and producing a particular kind of emotional o behavioral reaction
circuits
What are some brain structures that are members of the depression related brain circuit?
prefrontal cortex, hippocampus, amygdala, subgenual cingulate
What happens to the blood flow of depressed people
low in certain parts of the brain and higher i other parts of the prefrontal cortex
What happens to the hippocampus of people with depression
undersized and low production of new neurons
What happens to the subgenual cingulate of depressed people
particulalry small and active
What is problematic between various brain structure in people with depression
interconnectivity
body’s network of activities and body cells that fight off bacteria, viruses, and other foreign invaders
immune system
proteins that spread throughout the body and cause inflammation and various illnesses
pro-inflammatory cytokines
What are some biological treatments for depression?
anti-depressant drugs
brain stimulation
What kind of drugs are available for depression?
monoamine oxidase inhibitors (MAO), tricycles, second-generation antidepressants, ketamine-based drugs
an antidepressant drug that prevents the action of the enzyme monoamine oxidase
MAO inhibitors
What do MAO inhibitors od?
increase activity of serotonin and norepinephrine in brain
What is a downside of MAO Inhibitors?
eat them with a diet otherwise blood pressure rises dangerously. Food containing tyramin are a no no
an antidepressant drugs such as imipramine that has three rings in molecular structure and can relieve uni[polar depression
tricyclics
How do tricyclics help relieve depression?
they inhibit over vigorous reuptake process, allowing norepinephrine and serotonin to last in synapse longer
What happens to reuptake process in depressed people?
the reuptake process limit the neurotransmitter’s time in the synapse to prevent overstimulation, however, depressed people have a reuptake process that happens too quickly, resulting in understimulation
A group of second-generation antidepressant drugs that increase serotonin activity specifically, without affecting other neurotransmitters
selective serotonin reuptake inhibitors ( SSRIs)
SSRIs that increase norepinephrine activity only
selective norepinephrine reuptake inhibitors
What are some examples of SSRIs?
Prozac, Zoloft, Lexapro
What is an advantage of SSRIs?
they do not produce as many undesired effects as MAO inhibitors or tricyclics
What are some side effects of SSRIs?
weight gain and reduced sex drive
an anesthetic drug that is also used as an antidepressant, bringing rapid relief to many people with depressions
ketamine
What are some advantages of ketamine?
they are fast acting and can be effectively combined with other drugs
what are some downsides of ketamines?
they only has short term impact
side effects: dizziness, confusion, memory problems, feelings of derealization, high blood pressure
What does ketamine do to the brain?
it increases the activity of neurotransmitter glutamate in the brain
Interventions that directly or indirectly stimulate the brain in order to bring about psychological improvement.
brains timulation
What types of brain stimulation have been developed to treat depressive disorders?
vagus nerve stimulation
transcranial magnetic stimulation
deep brain stimulation
a biological treatment in which a brain seizure is triggered when an electric current passes through electrodes attached to the patient’s forehead.
electroconculsive therapy (ECT)