psychopathology Flashcards
definitions of abnormality, OCD, phobias, depression (38 cards)
what are the 4 definitions of abnormality
- failure to function adequately
- deviation from ideal mental health
- deviation from social norms
- statistical infrequency
define failure to function adequately
someone may cross thr ‘abnormal’ line when they can no longer cope with the demand of everyday life, eg: basic hygiene and nutrition
what are Rosenhan and Seligman’s indicators that someone is failing to function adequately
1) severe distress
2) maladaptive behaviour
3) irrational, illogical behaviour
4) when behaviour doesn’t adhere to interpersonal standards eg. eye contact
define deviation from ideal mental health
this definition looks at what is normal mental health and anyone who deviates from this is therefore abnormal
what is Marie Jahoda’s criteria for ideal mental health
-can cope with stress well
- thoughts and behaviours are rational and we have a realistic view of the world
- able to self-actualise and reach full potential
- do not rely on other people and are a master of our own environment
define statistical infrequency
a person’s behaviour is normal when is common statistically (frequent), a person’s behaviour is abnormal if it is rare (statistically infrequent)
define deviation from social norms
when someone behaves in a way that is different from what we expect. society makes a collective judgement about what is right and wrong (therefore these norms are specific to the culture we live in)
one strength and one weakness of the failure to function definition
s: represents a threshhold for when people need professional help so those who need it most can access it
w: it is normal to show some of the behaviours at certain times of your life eg. severe distress over the death of a loved one. This doesn’t make you mentally ill, we could incorrectly label people
one strength and one weakness of the statistical infrequency definition
s: real world application- used in clinical practice to assess the severity of someone’s symptoms
w: unusual characteristics can be positive eg. high IQ. these don’t make someone abnormal
one strength and one weakness of the deviation from ideal mental health definition
s: takes a more positive view on mental health disorders, defines normal and then looks at what is lacking (treatment can be tailored to what they need)
w: too optimistic- very few people meet all of the criteria all of the time as life may become very stressful and we may not always cope with this
one strength and one weakness of the deviation from social norms definition
s: distinguishes between desirable and undesirable behaviour
w: culturally relative- norms are different
w: some deviations from social norms are lifestyle choices eg. living off grid without a job
What are the two explanations of OCD
genetic and neural
cognitive characteristics of OCD
- obsessions
- unwanted irrational thoughts
behavioural characteristics of OCD
- repetitive compulsions to reduce anxiety
- avoidance of anxious situations
emotional characteristics of OCD
- extreme anxiety as a result of obsessions and compulsions
- depression due to anxiety and avoidance of situations
- guilt if the complusions isn’t completed
what is the genetic explanation of OCD
- suggests we may inherit genes which make us more vulnerable to OCD
- candidate genes- some researchers have tried to isolate genes (candidate genes) which may be linked to developing OCD. eg. SERT gene
- twin studies- Nestadt et al: meta-analysis of 14 twin studies, the concordance rates were higher for identical twins than non-identical (identical twins shared the disorder and 100% of their genes)
evaluate the biological explanation of OCD
w: ignores the role of one’s environment, if it was completely genetic concordance rates would be 100%
w: OCD is believed to be polygenic rather than caused by a specific gene like SERT
s: research support- twin studies and Ozaki et al: 6/7 participants with the mutation of the SERT gene had OCD or a related disorder
what is the basal ganglia and how does it link to OCD
basal ganglia: set of brain structures which make decisions about movement that are likely to lead to a positive outcome and avoiding things that might be unpleasant
an abnormality in this can lead to OCD, explains the compulsions as things that are done to avoid the consequences of the obsession
what are the two parts of the neural explanation of OCD
- basal gaglia
- serotonin
what is serotonin and how does it link to OCD
serotionin: a hormone which controls mood and carries messages from one neuron to the next
those with OCD have LOW LEVELS of serotonin because messages about regulating mood cannot be normally transmitted which may explain the anxiety which causes obsessions
evaluate the basal ganglia explanation of OCD
s: supporting research- Wise and Rapoport: found OCD was common in Parkinsons and torettes sufferers both of which involve an abnormality in the basal ganglia
w: not everyone with torettes and parkinsons has OCD therefore the basal ganglia cannot be the only contributing factor
evaluate the serotonin explanation of OCD
s: we use SSRIs to treat OCD which make the serotonin stay in the synapse for longer and this relieves some of the symptoms
w: however, it is not easy to establish cause and effect with the SSRIs and improvement, other factors could be involved
how can OCD be treated
SSRIs these are antidepressants which block the serotonin reuptake sites on the presynaptic neuron so that serotonin remains in the synapse for longer to be recieved on the receptor sites of the postsynaptic neuron
alternative drugs tricyclics which work in a similar way to SSRIs but have more side effects
evaluate the use of drugs like SSRIs to treat OCD
s: research to support the effectiveness- Soomro et al found that SSRIs were more effective than placebos in reducing symptoms and the severity of symptoms
s: cheap and require little effort they don’t cost the NHS much in comparison to CBT and CBT requires them to put in the effort of turning up and completing homework
w: could be considered unethical compared to CBT because it is not empowering for a patient as it requires no effort to take the drug
w: side effects including anxiety, digestive problems, visual and sleeping problems- limits approperiatness