Psychological Disorder9

Psychological Disorder9 - Psychological Disorders Etiology...

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Psychological Disorders Etiology of Mood Disorders Researchers believe that many different influences interact to produce mood disorders. Biological Factors Biological influences include the following: Genetic predisposition: Twin studies suggest that people can be genetically predisposed to major depressive disorder and bipolar disorders. Concordance rates for both major depressive disorder and bipolar disorders are higher for identical twins than fraternal twins. Genetic factors seem to be implicated more in depression among women than among men. Neurotransmitters: Research shows that the neurotransmitters norepinephrine and serotonin are involved in mood disorders. Brain structure: Some research indicates that people with chronic depression tend to have a smaller hippocampus and amygdala in the brain, perhaps because of an excess of the stress hormone cortisol. Cognitive Factors Many researchers have studied the various cognitive factors involved in depression:
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This note was uploaded on 01/23/2012 for the course PSY PSY2012 taught by Professor Scheff during the Winter '09 term at Broward College.

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Psychological Disorder9 - Psychological Disorders Etiology...

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