PSYC 241 Chapter Notes - Chapter 5: Seasonal Affective Disorder, Cyclothymia, Melatonin
8 Mar 2016
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Dsm-5 requires symptoms to persist for at least 2 weeks. Many symptoms must co- occur - depression diagnosed with 5 of 9 symptoms. Depressive disorders: involve change in mood in direction of depression. Bi- polar and related disorder: periods of depression cycling with periods of mania. Persistent depressive disorder: dysthymia- chronic low mood lasting for more than 2 years with at least 3 associating symptoms - found in people with high levels of stress, families of psychiatric abnormality, younger age onset, and higher comorbidity. Mania: distinct period of elevated, expansive or irritated mood that lasts at least one week. It is also accompanied by at least 3 symptoms. Hypomania: similar number of symptoms as mania but only present for < 4 days. Increase energy, decreased need for sleep, problems concentrating, impaired judgement, may feel chosen to fulfill a special mission".
