(3-24-15)
Facets of depression
Depression (like anxiety, anger, and other emotional states) can be thought of in different ways (and hence measured in different ways)
- Physiological–how our body reacts when we are depressed
- Behavioral–how we act when we are depressed
- Cognitive–how we think when we are depressed
- Phenomenology (subjective)–how we feel when we are depressed
Level of analysis
- Depression as a symptom
- Depression as a syndrome
- Depression as a disorder
Mood Disorders
- Major Depressive Disorder
- A Major Depressive episode that persists two weeks and causes significant personal distress or functional impairment
- Major Depression: 5 of 9 symptoms which must include either:
- Depressed mood nearly every day for most of the day, or irritable mood in children and adolescents or
- Anhedonia (diminished interest in or pleasure from activities)
- plus as least three or four (for a total of at least 5) of:
- insomnia or hypersomnia nearly every day
- significant weight loss or gain, increase or decrease in appetite nearly every day, or failure to gain expected weight in children
- psychomotor agitation or retardation [observed, not reported]
- fatigue or low energy nearly every day
- feeling worthless or excessive guilt nearly every day
- difficulty concentrating or indecisiveness nearly every day
- recurrent thoughts of death or suicide
- last at least two weeks, and cause either suffering or impairment in functioning
- Dysthymia
- Chronic (at least 2 years in adults, 1 year in children), milder depression than Major Depressive Disorder
- but, dysthymia in children predicts a future episode of major depression
- Chronic (at least 2 years in adults, 1 year in children), milder depression than Major Depressive Disorder
- Bipolar Disorder
- A Manic Episode that persists one week and causes either significant personal distress or functional impairment
- Manic Episode: period of elevated, expansive, or irritable mood including 3 of 7 symptoms (not just poor temper control: “I snap out”)
- Cyclothymia
- Chronic (2 years in adults, 1 year in children) of mood swings, milder than Major Depression or Mania
- Morbidity
- suffering
- impairment
- Comorbidity
- Anxiety Disorders
- Substance Use Disorders
- other mental disorders
- Mortality–suicide
Pediatric Bipolar Disorder
- Bipolar Disorder
- mood disorder affecting 1 to 3.9 % of adult population (Bipolar I & II)
- possibly most heritable major mental disorder
- untreated episodes progressively more severe and treatment resistant
- Bipolar Disorder in Children
- less common: .4 to 1.2% prevalence for any bipolar; BP II, BP NOS, & cyclothymia more common
- most common DSM-IV diagnosis in children: Bipolar Disorder Not Otherwise Specified (because did not meet duration criteria for either BP I or BP II)
- “most comorbid” disorder: 99% of the time there is a second diagnosis
- Modal Child Presentation: ultra-rapid cycling and comorbid ADHD, “rage attacks” most common presenting symptom
- DSM-5 attempts to address the over diagnosis of bipolar disorder in youth (and attendant skyrocketing rates of prescriptions of neuroleptic medications) by introducing new diagnositic category:
- Dysphoric Mood Disregulation Disorder, within the Depressive Disorders grouping
- the impact of this new diagnosis remains to be seen
- less common: .4 to 1.2% prevalence for any bipolar; BP II, BP NOS, & cyclothymia more common
- Differentiation of PBD and ADHD
- most useful symptoms:
- elevated mood
- grandiosity/inflated self-esteem
- pressured speech
- racing thoughts
- decreased need for sleep
- hypersexuality
- less useful
- bizarre appearance
- lack of insight
- aggression probably most impairing symptom
- highly sensitive
- not very specific
- most useful symptoms: