Chapter5 Mood Disorders Flashcards
mood disorders effect what three parts of life
- how people feel what they believe and expect
- how they think and talk
- and how they interact with others.
two types of mood disorders
major depressive disorder and bipolar disorder
depressive disorders
mood is consistently low
bipolar disorder
persons mood is sometimes decidedly upbeat perhaps to the point of mania and sometimes low
three types of mood episodes
major depressive
DSM-5 Criteria for Major Depressive Episode
A mood episode characterized by severe depression that lasts at least 2 weeks.
affect
depressed mood most of the day
diminished interest or pleasure
behavior
weight change
sleep problems
motor agitation or retardation
fatigue or loss of energy
cognition
feelings of worthlessness
diminished ability to think
recurrent thoughts of death
Anhedonia
inability to experience pleasure
two behavioral indicators of depression
psychomotor agitation or psychomotor retardation
psychomotor agitation
An inability to sit still@ evidenced by pacing@ hand wringing@ or rubbing or pulling the skin@ clothes@ or other objects.
Psychomotor retardation
A slowing of motor functions indicated by slowed bodily movements and speech and lower volume@ variety@ or amount of speech.
Hypersomnia
excessive sleepiness
During a depressive episode@ people may also report
ifficulty thinking@ remembering@ concentrating@ and making decisions
is depression heterogeneous or homo
heterogeneous meaning that people with depression experience these symptoms in different combinations
no single set of symptoms is hared by all ppl
prodrome for MDE
An early or premonitory sign or symptom of a disorder.
anxiety mild depressive symptoms that last weeks to months
premorbid
referring to the period of time prior to a patient’s illness
comorbid
two or more disorders in the same individual
what percentage of MDE return to premorbid functioning
2/3
one state that mimics depression symptoms
grief
bereavement exclusion
sad bc loss of loved one
A stipulation in which people who have experienced the loss of a significant loved one would not be given the diagnosis of major depression within the first 2 months of the loss. This exclusion was removed from the DSM-5.
On the other hand, removing the bereavement exclusion may lead to overdiagnosis of—and rush to treat with medication or psychotherapy
major depressive disorder
A mood disorder marked by five or more symptoms of an MDE lasting more than 2 weeks.
heterogenous symptoms
different for each individual
are Younger children who are depressed are considered to be at high risk for being depressed as adults.?
no
recurrent depression
More than half of those who have had a single depressive episode go on to have at least one additional episode@
absenteeism
the failure to show up for work
Presenteeism
attending scheduled work when one’s capacity to perform is significantly diminished by illness or other factors
Phototherapy
Treatment for depression that uses full-spectrum lights; also called light-box therapy.
how many americans will experience MMD
how much does it cost the economy
20percent
age cohort and depression
people born at roughly the same time who pass through the life course together
peripartum onset
subtype of depression that applies to women who experience an episode of major depression either during pregnancy or in the four weeks following childbirth
before puberty do boys or girls experience depression more
after?
before the same
after girls
ppl with MMD also tend to have
anxiety disorder 50 PERCENT
likelihood of having another MDE table
Persistent depressive disorder (dysthymia)
Not as severe as MDE MDD@ fewer symptoms@ younger age@ no vegetative or psychomotor symptoms but lasts longer and incorporated into self image
Disruptive mood dysregulation disorder
a depressive disorder in children characterized by persistent irritability and frequent episodes of out-of-control behavior.
It is supposed to be a more accurate description of kids who have outofcontrol rage episodes and were incorrectly labeled as having bipolar disorder and then were (inappropriately) treated for that disorder
Understanding Depressive Disorders
Brain Systems
unusually low activity in frontal lobe that has direct connections to the amygdala and limbic structures
alters connection to dopamine serotonin and norepinephrine systems MODULATORY SYSTEMS
Understanding Depressive Disorders
Neural Communication
Researchers have long known that the symptoms of depression can be alleviated by medications that alter the activity of serotonin or norepinephrine
alters connection to dopamine serotonin and norepinephrine systems MODULATORY SYSTEMS
is depression caused by too little or too much of any specific NT
the disorder arises in part from complex interactions among numerous neurotransmitters and depends on how much of each is released into the synapses@
how long each neurotransmitter lingers in the synapses,
and how the neurotransmitters interact with receptors in other areas
Understanding Depressive Disorders Neurological Factors
The stress diathesis model of depression
(Stress Related Hormones)
stress–diathesis model
excess of cortisol in blood, which makes their brains prone to overreacting when they experience stress.
alters serotonin and norepinephrine and decreases size of hippocampus(memory)
FOCUSES ON HPA AXIS
3
avoidant@ anhedonic@ and: unenthusiastic
The HPA axis
Stress activates the hypothalamus@ which releases corticotropin-releasing factor (CRF)@
Understanding Depressive Disorders Neurological Factors
Genetics
One possibility is that genes influence how a person responds to stressful events (Costello et al.@ 2002; Kendler et al.@ 2005). If a person is sensitive to stressful events@ the sensitivity could lead to increased HPA axis activation (Hasler et al.@ 2004)@ which in turn could contribute to depression.
Attentional Biases
People who are depressed are more likely to pay attention to sad or angry stimuli.
negative triad of depression.
Negative view of
world,
self
future
Dysfunctional Thoughts
cognitive distortions
rumination
compulsive fretting; overthinking about our problems and their causes