33 Depression Flashcards

1
Q

LIFETIME prevalence of depression in NZ

A

~20%

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2
Q

Gender dimorphisms for depression prevalence?

A

Women 2x more likely than men

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3
Q

Depression is more common in what TYPES of countries?

A

Industrialised > developing countries

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4
Q

List the DSM5 criteria for depression

A

5 or more symptoms, present for >2 weeks

  • depressed mood
  • dec INTEREST in activities
  • changes to WEIGHT and APPETITE
  • FATIGUE
  • INSOMNIA/HYPER somnia
  • Feelings of WORTHLESSNESS and GUILTb
  • dec concentration
  • recurrent thoughts of death + SUICIDE
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5
Q

Diagnostic criteria for these symptoms being CAUSATIVE of depression?

A
  • Cause clinically significant DISTRESS
  • Impairment in functioning (social, occupational, etc)
  • Not attributable to a substance or another disorder
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6
Q

Explain possible OVER-diagnosing of depression

A
  • People are INCLINED to label symptoms as depression if presented out of CONTEXT
  • Drug companies reap MONETARY gain
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7
Q

Perhaps the issue is not with the individual, but with _____ (in which case we need ______)

A

Perhaps the issue is not with the individual, but with SOCIETY (in which case we need a REVOLUTION, not therapy!)

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8
Q

Name the dominant BIOLOGICAL hypotheses for depression

A
  • Serotonin depletion (limited evidence)

* NeuroSTRUCTURAL differences

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9
Q

Explain the Nature vs Nurture debate in terms of depression?

A

Physical differences in brain due to GENETICS (nature) or TRAUMA/events (nurture)?

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10
Q

Evidence AGAINST biological explanations?

A

Stressful EVENTS ALONE can predict likelihood of depression

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11
Q

List the 4 psychological explanations of depression, and what they think causes it

A

Psychoanalysis - EARLY experiences evoked by a later loss
Behaviorism - “Learned Helplessness” due to repeatedly feeling lack of CONTROL
Humanism - Incongruence (discrepancy between ACTUAL and IDEAL self)
Sociocultural - POVERTY strongly associated with depression

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12
Q

What is the COGNITIVE model’s explanation of depression

A

Neg THOUGHTS cause depression

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13
Q

Explain Beck’s Cognitive Triad

A

CORE BELIEFS developed in youth (uncounscious)
Activation of NEG core beliefs by neg life EVENTS
= depression

Self “I am a bad person”
World “The world is a hopeless place”
Future “The future is hopeless”

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14
Q

What is the “BEST” model to explain depression

A

COMBO
Bio-Psycho-Social model

Genetic vulnerabilities + psychosocial vulnerabilities + social STRESS = depression

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15
Q

what GUIDELINES are used for treatment?

Explain these guidelines

A

NICE guidelines = STEPPED care
Early intervention beneficial

Mild-moderate = TALKING therapies best
Moderate-severe = DRUGS + Tx
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16
Q

What is ECT

A

Electroconvulsive Tx
= epileptic seizures induced in people (found that epileptics suffered less depression)
= comas induced using insulin

17
Q

Is ECT actively prescribed?

What type of patient would it be used for?

A

LAST RESORT for life-threatening depression

Used for NON-responders to medication

18
Q

What is the RELAPSE rate of ECT?

A

60% relapse

19
Q

How is ECT applied in modern psychiatry?

A

More GENTLE, done with general anaesthetic, with MINIMAL electricity

20
Q

What is psychosurgery

A

Lobotomies, common in 40-50s

21
Q

Explain how CBT works for depression

A

Must change the way you THINK

- identify cognitive DISTORTIONS and REPLACE these with more ADAPTIVE thoughts

22
Q

NZ suicide rates in youth?

A

HIGHEST male youth suicide

THIRD highest female youth suicide

23
Q

What is the GENDER paradox in suicide rates

A

Women more likely to ATTEMPT

Men more likely to COMPLETE

24
Q

Common reasons cited for suicide attempts?

A
  • pressure to conform/perform
  • financial worries
  • abuse/neglect
  • alcohol/drugs
25
Q

List some WARNING SIGNS of suicide

A
  • Depression
  • Threats/warnings
  • Hopelessness
  • Risk-taking behavior
  • Personality changes
  • Giving away PRIZED possessions
  • Lack of interest in future
26
Q

3 factors that AFFECT suicide prevalence

Describe each effect

A

Age - high in YOUTH, MIDDLE-aged, and ELDERLY
Gender - women attempt, men complete
Ethnicity - Maori in NZ (colonisation, poverty)