Mentalill.pptx - Treatments for Emotional Disorders Chapter...

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Chapter 13 Treatments for Emotional Disorders
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Mental Disorder Mental disorders – patterns of thoughts, feelings, or actions that are deviant, distressful, and dysfunctional World Health Organization (WHO): Estimated 450 million people qualify for a mental disorder diagnosis 16% diagnosed with depression 4 th leading cause of disability 2x more females 1:6 commit suicide 2x more males
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Depression – Symptoms Depressed mood most of the day, and/or Markedly diminished interest or pleasure in activites Significant increase or decrease in appetite or weight Insomnia, sleeping too much, or disrupted sleep Lethargy or physical agitation Fatigue or loss of energy nearly every day Worthlessness or excessive/inappropriate guilt Daily problems in thinking, concentrating, making decisions Recurring thoughts of death and suicide
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Depression Dysthymic disorder Depressed mood that occurs nearly every day for 2 years Major depression Presence of depression, hallucinations, and delusions Vascular depression Poor blood flow to the brain Most prevalent in elderly Antidepressants: 3 rd most prescribed drug Most prescribed in 18-44 year olds Taken for >2 years
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Neuroimaging Techniques Brain structure analyses show: Overactive amygdala Reduction in volume of hippocampus Underactive and reduced volume of dorsal prefrontal cortex Underactive nucleus accumbens ½ of Parkinson’s patients report depressive episode before onset of disorder Stimulation leads to improvement in symptoms
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Neuroimaging Techniques Inform us about what brain regions are associated with depression Tell us nothing about neurochemical abnormalities Pharmacologic dissection of mental disorders: Inference about the nature of neuronal abnormalities based on the pharmacological actions of successful drug treatments
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Animal Models
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