Affective disorder
Mental disorder characterised by sudden changes or extremes in affect
significant distress
impaired function
classification systems
ICD10 (WHO, 2003)
DSM5 (APA, 2013)
- Continuum
Depression
low mood, suicidal thoughts, lack of energy, loss of concentration
Kessler et al (1994 ) 21%women 13% men.
70% get better in a year
7% not better after 10 years
bipolar
mania. Depression.
1= 1 or more manic episode without depression
2= both.
Cyclothymia - hypnomanic/ sub depressive.
Kessler et al (1994) 1% prev. 50% relapse.
anxiety
GAD, panic, phobia, obsessions, PTSD.
KEssler et al (1994) ; 30% women 19% men.
childhood disorders
Externalising
Internalising.
Stress diathesis hypothesis - Davidson and Neale (2001): Diathesis (genetic) stress (negative life event)
Stressors:
Conflict between parents
Parental psychiatric problem
Quality of parent child relationships
Stressor : Rutter (1979) 6 risk factors
Caspi et al (2002)
Found evidence for diathesis stress model.
MAOA gene and stress account for 44% of violent crimes in men .
Brown and Harris (1978)
Sever life events preceded depression in 80% of cases.
Segal et al (1996) Kindling hypothesis
Proposes that people are sensitised by previous episodes so that less stress events can activate subsequent episodes
Wainright and Surtees (2002) early experiences
Parental divorce, frightening event and physical abuse predict depression (before the age of 17)
rumination and depression
Verhaegen et al., (2005) Rumination depression and creativity
Studying - Problems
Much of the research based on interviews.
- Ecological momentary assessment of affective disorders
: Reduces recall bias, affect dynamics, integrates data types, reveals contextual effects, can provide feedback to clients.
The role of emotion in psychopathology (Kring, 2010)
= NEed transdiagnostic approach that focusses on emotion processes