depressive and bipolar disorders Flashcards
(39 cards)
what 5 areas of functioning does depression effect?
emotional motivational behavioral cognitive physical
what are the emotional symptoms of depression?
- anhedonia
- crying, anger
motivational symptoms of depression
lack of drive, initiative, sponteneity
paralysis of will
behavioral symotoms of depressoin
less active, more isolated
move/speak more slowly
cognitive symptoms of depression
- hold very negative view of the self
- blame self for every bad event (even if not their fault) and credit externals for positive events
- believe future is going to be bad
- hopeless/helpless
- memory/reasoning/attentional difficulty
physical symptoms of depression
- headaches, indigestion, constipation, dizzy spells, general pain
- sleep/appetite disturbances
what is a major depressive episode?
2 or more weeks w at least 5 of the depression symptoms (including sad mood and/or anhedonia)
seasonal depression
changes w seasons, often winter
catatonic depression
marked by either immobility or excessive activity
peripartum depression
either during or w/in 4 weeks after giving birth
melancholic depression
person is almost totally unaffected by pleasurable events
when unipolar depression is chronic
persistent depression disorder (may have repeated eps of major depressive eps)
if less severe/disabling symptoms, then “with dysthymic syndrome”
premenstrual dysphoric disorder
women w clinically signif depression symptoms the week before period
disruptive mood dysregulation disorder
persistent depressive symptoms + recurrent outbursts of severe temper
genetic factors of depression
some ppl inheret a predisposition to depression
significant diffs between identifical and fraternal twins
biochemical factors of depression
- low activity of serotonin + norepinephrine , may involve other NTs like dopamine + acetylcholine
- endocrine system plays role- high levels of cortisol found in depressed ppl
what is the brain circuit implicated in depressoin?
-prefrontal cortex (strong connections between it and hippocampus)
hippocampus
amydala (50% more activity + blood flow than in nondepressed ppl. Increases proportionally to severity of depression)
Brodmann Area 25 (smaller but more active in depressed ppl)
filled w serotonin transporters
immune system factors of depression
immense stress causes immune system disregulation (less white blood cells, c reactive protein increases and causes inflammation)
it may be that it causes depression, but causal direction unclear
cognitive view of depression
most well supported by research
ppl view events in negative ways, and this leads to the disorder
theory of negative thinking + theory of learned helplessness
negative thinking theory of depression
maladaptive attitudes
cognitive triad
errors in thinking
automatic thoughts
cognitive triad
(ppl persistnetly consider 1) their experiences 2) themselves and 3) their futures in negative ways)
maladaptive attitudes
(often start early in life, ‘my general worth tied to all task performance’)
errors in thinking
negative logical mistakes. Making conclusions from little evidence
minimize pos, maximise neg events
automatic thoughts
steady train of thoughts telling them unpleasant things about the cognitive triad