week 8 Flashcards
Examples of DSM 5 disorders
- major depressive disorder
- dysthymic disorder
- bipolar disorder
- cyclothymic disorder
- premature dysphoric disorder
- substance induced depressive disorder
- psychotic depression
- disruptive mood dysregulation disorder
Melancholic disease
- universal disorder
- described in old testament and classical hindu medical texts (is ancient)
- involves biological psychological and sociocultural functioning
major depressive disorder
- must have a major depressive episode in the absence of a history of mania
- major depressive episode involves:
- change in ability to function
- depressed mood, sadness, feelings of hopelessness and worthlessness
- loss of interest in pleasurable activities
- must be for a period of at least two weeks
symptoms of major depression
- weight gain or loss
- insomnia or hypersomnia
- psychomotor agitation or retardation
- fatigue or loss of energy
- feelings of worthlessness/inappropriate guilt
- lack of concentration
- thoughts of death or suicide
persistent depressive order
- chronic, lasting at least two years
- includes chronic MDD or dysthymia which is a milder more chronic form of depression - high risk of relapse and 90% develop MDD
- only diagnose in people without history of mania
prevalence and costs of depression
- lifetime prevalence for unipolar depression is around 18% in western populations
- impairs work, family and social functioning
- costs average worker about 27 lost working days per year
- most sufferers experience repeated episodes
casual factors linked with mod disorders
- risk increased by stressful life events
- 80% of MDD sufferers repot a stressful life event preceding the disorder:
- bereavement
- break up of a relationship
- prolonged unemployment
- physical illness
- Carter and Garber (2011) said in young people, interpersonal stress associated with depression only in those who think negatively
- need to consider importance of coping mechanisms, genetic factors, availability of social support
Beck’s cognitive triad of depression
- distorted ways of thinking develop in childhood and place one at increase risk for depression in later life.
- negative cognitions abut the future, the world and ones self
Martin Seligman
- people who are depressed view selves as helpless to change own lives for the better.
- Helplessness is learned, depends on situational factors and experiences
- dogs who experience inescapable electrical shocks failed to escaper when escape became possible which showed lethargy/lack of emotion
vulnerability to depression stems from explaining disappointments using three types of attribution
internal factors - beliefs that failures reflect personal inadequacies rather than external factors
Global factors - beliefs that failures reflect flaws in personality rather than specific factors
stable factors - beefs that things will never change
biochemical factors
- antidepressants increase levels of serotonin and noradrenaline
difference in causal theories
- psychodynamic explanations
- behavioural theories
- cognitive theories: negative cognitions & self-schemas, learned helplessness, hopelessness theory
- neurotransmitter balance
treating depression
- recognising and correcting distorted cognitions
- typically lasts 14-16 sessions
- clients monitor automatic negative thoughts that are then challenged by therapist: - all or nothing thinking, overgeneralisation, magnification, personalisation
effectiveness of antidepressants
- neurotransmitter levels rise in hours or days
- may take weeks or months for full effects to be achieved
- relieve symptoms but only 1 in 3 experience remission
- relapse common after withdrawal
- more effective with severely depressed patients
- SSRIs most commonly used
electro convulsive therapy
- electrical current passed through brain to produce epileptic fit
- ECT should be considered for the rapid treatment of severe depression that is life-threatening
- should not be used routinely in moderate depression, although can be helpful for someone with moderate depression if they have not responded to several different drug treatments