Psychology 1000 Study Guide - Quiz Guide: Twin, Lithium Chloride, Collectivism

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Bipolar Disorder
Unipolar depression a person experiences only depression
Bipolar disorder depression alternates with periods of mania (behaviour that is
quite opposite of depression) a state of highly excited mood and euphoric and
cognitions are flamboyant.
o The person believes there are no limits and does not recognize the negative
consequences
o Manic behaviour is hyperactive, the manic person engages in frenetic activity.
In a manic state, speech is often rapid or pressured and there comes a lessened need for
sleep
Manic people may go days without sleep until exhaustion and the main slows down
Prevalence and Course of Mood Disorders:
No age group is exempt from depression
The rate of depressive symptoms in children and adolescents is as high as the adult rate
People born after 1960 are 10 times more likely to develop depression than their
grandparents
The prevalence of depressive disorders is similar across socio-economic and ethnic
groups, but there is a major sex difference in our culture
Women are twice as likely as men to suffer from unipolar depression, yet stats are the
same for men and women in regards to bipolar disorder
Could be due to biochemical differences in the nervous system, or the monthly
premenstrual depression that make women more vulnerable
There may also be cultural causes
Most people who suffer depressive episodes never seek treatment
However, depression usually dissipates over time
After the initial episode, depression typically lasts on average of 5-10 months when
untreated
In half of all cases, depression will never recur
Many other cases show a second pattern: recovery with recurrence.
These people will remain symptom free for 3 yrs before experiencing another
depressive episode of about the same severity and duration.
The time interval between episodes of depression usually becomes shorter over the
years
About 10% of people who have a major depressive episode will not recover and will
remain chronically depression
Casual Factors in Mood Disorders:
Biological Factors:
Genetic and neurochemical factors have been linked to depression
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PSYCH 1000 Full Course Notes
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PSYCH 1000 Full Course Notes
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