Models of abnormality Flashcards
Abnormal psychology - 4 D’s
Distress
Dysfunction
Deviance (statistical deviance)
Danger (health may be affected)
DSM 5 - abnormality
“A behaviour or psychological syndrome or pattern that occurs in a person and that is associated with significant distress or disability (impairment in 1+ important areas of functioning)”
Biological Model of abnormal behaviour - general assumption?
Illness brought about by malfunctioning parts of the organism (anatomy/brain chemistry).
Sources of biological abnormality
- Genetic inheritance - 23 pairs of chromosomes. Human genome project helped mapped various genes to disorders.
- Evolution – could be a result of a mutation OR genes which influence abnormality have stemmed from normal evolutionary principles (Siphahi et al. 2014). They have survived the course of time bc they once helped us survive (still are useful) but now leave us prone to disorders (capacity to feel fear –> anxiety disorders)
- Viral infections – E.G SZ proneness is thought to stem from exposure to certain viruses before birth (Liu et al. 2014). Viruses might damage the fetus
Biological treatments; some examples
1) Psychotropic medications - drugs that affect the brain + reduce symptoms
2) Electroconvulsive therapy - electric current passing through forehead
3) Psychosurgery - surgery for mental disorders
4) Dietary supplements (neutracuticals) - non pharmaceutical food substance that someone can add to their diet to help prevent or treat disorders.
assessment of bio model overall
- earnt respect
BUT - not all behaviour can be explained in bio temrs
- drugs = side effects
Psychodynamic model
- id, ego, superego
- Psychopathology arises from unconscious conflicts
Psychodynamic therapies (recent ones) (2)
1) Short term: choosing one thing to focus +work upon and look at psychodynamic issues that affect it. Can be quite helpful for patients (Knekt et al. 2015)
2) Relational psychodynamic therapy - therapists disclose info about themsleves + establish more of an equal relationship with patients
Assessment of psychodynamic model
- Can help to understand abnormal functioning
- Introduce therapy lead by theory
- Hard to research
Behavioural model
- Focus on the responses an organism makes to an environment (internal or external)
- Abnormal behaviours can be learnt
- Operant (rewards) + classical conditioning ( associations)
Behavioural therapies
- identification of abnormal behaviours and replacing them with more appropriate ones by using conditioning principles
- classical conditioning - patients learn to react calmly instead of fearfully to object
assessment of behavioural model
- Useful insight
- Treatments
- No talk of thoughts/ feelings or biology
Cognitive model
- assumes that a persons’s thoughts are responsible for their behaviour.
- The model deals with how information is processed in the brain + the impact of this on behaviour
- maladaptive behaviour is caused by faulty cognitions
- the way you think that’s the problem
- can overcome by changing thought patterns
Cognitive therapies
Beck’s cognitive therapy
CBT
Assessing the cognitive model
- focus on human thought
- led to research
BUT - thoughts could be a result rather than cause of abnoramilites