Lecture 21 - Mood Disorders I - PowerPoint PPT Presentation

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Bipolar disorder bipolar disorder I, bipolar disorder II, cyclothymic disorder. Mood disorders defined by etiology due to medical condition ...

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Lecture 21 - Mood Disorders I

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Mood disorders i chapter 7 march 10 2010 psyc 2340 abnormal psychology brett deacon ph d l.jpg

Mood Disorders I(Chapter 7)March 10, 2010PSYC 2340: Abnormal PsychologyBrett Deacon, Ph.D.


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Exam #2

  • Mean score: 34.7/40 (86.8%)

  • Range: 21 – 40

  • #A’s: 57

  • #B’s: 50

  • #C’s: 14

  • #D’s: 1

  • #F’s: 1


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Current Grades

  • Grades have been posted to course website

  • Mean percent = 81.7%

  • Range: 55.6% – 100%

  • #A’s: 22

  • #B’s: 52

  • #C’s: 41

  • #D’s: 6

  • #F’s: 2


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Mood Disorders

  • Disorders/problems covered in this section

    • Major Depression

    • Bipolar Disorder

    • Suicide


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Mood Disorders

  • Specific attention to:

    • DSM-IV diagnostic system

    • Causes (biological, psychological, social), including those from scientific studies and promoted in the media

    • Treatment (biological, psychological)


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Mood Disorders

  • Organization of the DSM-IV mood disorders section

  • 1. Types of mood “episodes” – building blocks for defining mood disorders

    • Major depressive episode

    • Manic episode


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Mood Disorders

  • 2. Diagnostic criteria for specific mood disorders

    • Depressive disorders – major depressive disorder, dysthymic disorder

    • Bipolar disorder – bipolar disorder I, bipolar disorder II, cyclothymic disorder

    • Mood disorders defined by etiology – due to medical condition or effects of a substance


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Major Depressive Episode

  • 5 or more symptoms must be met during a 2-week period

  • Person must have at least 1 of these symptoms: (1) depressed mood most of the day, nearly every day, and (2) diminished interest or pleasure in all or almost all activities most of the day, nearly every day

  • Other symptoms include:

    • Significant weight loss/gain or change in appetite

    • Insomnia or hypersomnia

    • Psychomotor agitation or retardation

    • Fatigue or loss of energy

    • Feelings of worthlessness or inappropriate guilt

    • Difficulty thinking or concentrating

    • Recurrent thoughts of death or suicidal ideation


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Major Depressive Episode

  • Cardinal features

    • Persistent sadness

    • Anhedonia (loss of interest/pleasure)

    • Biological or “vegetative” symptoms

    • Cognitive symptoms

    • Psychotic features – 5%-20% of cases

      • Hallucinations

      • Delusions


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Major Depressive Episode

  • What does a Major Depressive Episode look like?

  • Video clips of Barbara


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Major Depressive Disorder

  • DSM-IV diagnostic criteria:

    • Presence of major depressive episode

    • Episode not part of a psychotic disorder

    • No history of manic episodes


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Major Depressive Disorder

  • Single episode vs. recurrent depression

  • 85% have recurrent episodes

  • Typical # episodes = 4

  • Typical episode duration = 4-5 months


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Major Depressive Disorder

  • Lifetime prevalence = 16.1%

  • Twice as common in women

  • Gender differences disappear by age 65

  • Few differences across subcultures

  • Mean age of onset = 25


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Most Common Disorders in the National Comorbidity Survey Replication Study

% With

Disorder

Kessler et al. (2005)


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Manic Episode

  • One-week period of elevated, expansive, or irritable mood

  • During period, 3 or more of these symptoms:

  • Inflated self-esteem or grandiosity

  • Decreased need for sleep

  • More talkative than usual or pressured speech

  • Flight of ideas/racing thoughts

  • Distractibility

  • Increase in goal-directed behavior or psychomotor agitation

  • Excessive involvement in pleasurable activities with potentially negative consequences


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Mood Episodes

  • For both major depressive and manic episodes:

    • Symptoms cause significant distress or impairment

    • Symptoms are not substance-induced or due to medical condition


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Manic Episode

  • What does a Manic Episode look like?

  • Video clips of Mary


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Bipolar Disorder

  • DSM-IV diagnostic criteria:

    • Presence of manic episode

    • Person may or may not have a history of major depressive episodes

    • Episode not part of a psychotic disorder


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Bipolar Disorder

  • Lifetime prevalence = 1.3%

  • No gender differences

  • Age of onset – 18-22

  • Tends to be chronic


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