Psychopathology Flashcards

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1
Q

What is the Statistical Deviation definition of Abnormality?

A

Statistical norms - Any commonly seen behaviour or characteristic.

Deviation - Any unusual behaviour or characteristic, e.g. fear of buttons

Real-life example - Intellectual disability disorder requires an IQ in the bottom 2% of the population.

Occupies the extreme ends of a normal distribution curve, eg low IQ defined as intellectual disability disorder.

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2
Q

Evaluation of the Statistical Deviation definition of Abnormality

A

Real life application - provide a basis of comparison - can be used as part of a clinical assessment

Limitation - unusual characteristics can be a good thing - According to this model, people with higher than average IQ would be considered ‘abnormal’ - this is actually a desirable trait - so statistical deviation should never be used alone in clinical assessment.

Labelling can be a disadvantage. A person may have a lower than average IQ but function well in society and are happy.

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3
Q

What is the Deviation from Social Norms definition of Abnormality?

A

Social norms - Ways in which most people behave, established by social group.

Deviation - A behaviour different from how most people behave, e.g. hearing voices

Real-life example - Antisocial personality disorder involves socially unacceptable behaviour.

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4
Q

Evaluation of the Deviation from Social Norms definition of Abnormality

A

Does not consider cultural variations:
-May diagnose someone as abnormal using their cultural norms or standards - not the other persons.
-E.g. hearing voice is acceptable in some cultures.

Can be used for diagnosis of anti-social personality disorder but other factors need to also be considered:
-E.g. their unusual behaviours have to make others distressed for it to be considered ASPD.

Can lead to human rights abuses, as an instrument of social control- anyone who deviates from the norm can face prejudice.
-E.g. Drapetomania (Black slaves trying to escape)
-Nymphomania (women attracted to working-class men).
-Examples of when diagnosis has be used for social control.

Lack of temporal validity, norms change over time

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5
Q

What is the Failure to Function Adequately definition of Abnormality?

A

Adequate functioning - Coping with the demands of everyday life

Failure to function adequately - Failing to cope with everyday life, e.g. not holding down a job

Real-life example - Intellectual disability disorder involves having low IQ and failure to function adequately

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6
Q

Evaluation of the Failure to Function Adequately definition of Abnormality

A

It captures the perspective of the patient:
-acknowledgesthes importance of the experience of the individual patient and other in their life.

People that lead extreme lifestyles, extreme sports, religions etc - would be considered as abnormal according to this definition:
-Views living these life styles as maladaptive.
-Treating these as failures of adequate functioning may limit freedoms.

Subjective - saying someone is distressed may be an opinion
-However -there are measures of making judgement objective - e.g. Global Assessment of Functioning scale.

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7
Q

What is the Deviation from Ideal Mental Health definition of Abnormality?

A

Mental health - Characteristics of a psychologically healthy person

Good mental health (Jahoda) - A set of criteria including lack of symptoms, independence, realistic view of the world and good self-esteem.

Deviation from ideal mental health - Failing to have any one of the above criteria for good mental health, e.g. having low self-esteem

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8
Q

Evaluation of the Deviation from Ideal Mental Health definition of Abnormality?

A

Offers a comprehensive definition of mental health and covers a broad range of criteria needed for good mental health - probably cover most the reasons why someone would see help - sheer range of criteria make it a good tool for thinking about mental health.

Some of the criteria are culture bound - more set to individualistic cultures - E.g. self actualisation - would be considered indulgent in more collectivist cultures - putting onseself above community.

Its sets an unrealistically high standard for mental health - very few people would meet all - making mist of us abnormal.

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9
Q

What are the characteristics of phobias?

A

What constitutes a phobia? Specific phobias for objects or situations, agoraphobia and social anxiety.

Behavioural - Panic, avoidance or endurance of the phobic stimulus

Emotional - Fear and anxiety.

Cognitive - Selective attention towards the phobic stimulus, irrational beliefs about it and cognitive distortions of it.

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10
Q

What are the characteristics of depression?

A

What constitutes depression? Major depression, recurring depression

Behavioural - Changes to usual activity levels, sleep and eating patterns and possibly aggression.

Emotional - Lowered mood, anger and decline in self-esteem.

Cognitive - Poor concentration, bias towards seeing the negative.

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11
Q

What are the characteristics of OCD?

A

What constitutes OCD? Characterised either by obsessive thought, compulsive behaviours or both.

Behavioural - Include compulsions to repeat behaviours, usually to reduce anxiety.

Emotional - Main characteristic is anxiety, often accompanied by depression and guilt.

Cognitive - Recurrent obsessive thoughts, accompanied by rituals to cope with the obsession

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12
Q

Summary of the Behavioural Approach to explaining phobias

A

Behavioural approach - Behavioural characteristics of phobias as of primary importance.

Two-process model - Mowrer’s idea that phobias are: (a) learned and (b) maintained.

Classical conditioning - Acquisition of phobias. Neutral stimulus associated with fear, then becomes phobic object

Operant conditioning - Maintain phobia. Negative reinforcement because avoidance reduces anxiety.

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13
Q

Evaluation of the Behavioural Approach to explaining phobias

A

Incomplete explanation of phobias - some phobias are adaptive and make evolutionary sense:
-We easily acquire phobia of these things.
-Biological preparedness - we are biologically prepared to fear some things more than others (Seligman 1971)

Not all bad experiences lead to phobias:
-E.g. being bitten by a dog does not always lead to phobia of dogs (DiNardo et al. 1988)

Good explanatory power - the two-process model has led to effective therapy where patients are exposed to the fear stimulus and are prevented from practising their avoidance behaviours - as a reuslt phobic behaviour declines - thus good application.

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14
Q

Summary of desensitisation - behavioural approach to treating phobias

A

Systematic desensitisation - A behavioural therapy, i.e. based on learning.

Anxiety hierarchy - High and low anxiety situations identified involving the phobic stimulus

Relaxation - Patient taught relaxation techniques or introduced to anti-anxiety drugs

Gradual exposure - Patient works up the anxiety hierarchy, maintaining relaxation at each level

How it works - Counterconditioning: the phobic stimulus is paired with a relaxing stimulus until it triggers relaxation not anxiety

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15
Q

Evaluation of desensitation - behavioural approach to treating phobias

A

Evidence shows that Systematic Desensitisation is an effective therapy.
-Gilroy et al. (2003) followed up 42 patients who had SD for spider phobia in three 45 minute sessions.
-At both 3 and 33 months - the SD group - less fearful than control group (who were treated by relaxation without phobia).

It is suitable for a diverse range of patients including those with learning difficulties:
-Alternatives to SD - e.g. flooding - not well suited to some - patients with learning difficulties may not understand whats going on.

Patients prefer it to other therapies such as flooding as it does not involve the same trauma:
-those giving a choice between SD and flooding chose SD.
-Because it does not cuase trauma + includes pleasant experiences - talking with a therapist.

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16
Q

Summary of flooding - behavioural approach to treating phobias

A

Flooding - A behavioural therapy.

Fast process - Small number of long sessions, sometimes just one session of three hours.

Preparing the patient - Flooding is a traumatic experience so the patient needs to be well prepared for the exposure

How it works - Extinction: the conditioned stimulus is presented without the unconditioned stimulus until it no longer triggers a response.

17
Q

Evaluation of flooding- behavioural approach to treating phobias

A

Quicker than alternatives and therefore cost effective

Less effective for some more complex phobia such as social phobias.
-May be because these phobia aren’t just anxiety - also negative thoughts about the situation.

The treatment is traumatic for patients - causing attrition and sometime psychological harm
-Patients often unwilling to see it through till the end.

18
Q

Summarise the cognitive approach to explaining depression - Beck’s theory

A

Beck’s theory - Explains vulnerability to depression in cognitive terms.

Faulty information processing - Selective attention to the negative aspects of situations

Negative self-schemas - These affect how we interpret any new information relevant to us

Negative triad - World, self, future.

19
Q

Evaluation of Beck’s cognitive approach to explaining depression

A

It has good supporting evidence - people with cognitions such as negative schemas and triads are more likely to develop depression
Grazoli and Terry - 65 pregnant women assesed for cognitive vulnerability - more vulnerable = more likely to develop post natal depression.

It does not fully explain every case of depression - some people experience hallucinations and feelings of anger but Beck’s theory does not explain this

It has lead to effective therapy:
e.g. cognitive behavioural therapy to treat depression - components of negative triad - easily identified and challenged by therapist - enable patient to test whether elements of negative triad are true.

20
Q

Summarise Ellis’ ABC cognitive model of depression

A

The ABC model - Irrational beliefs make us over-react to events and get depressed.

A Activating event - A negative life event

B Beliefs - Irrational interpretations of A make us over-react to the life event.

C Consequences - Emotional and behavioural outcome is depression.

21
Q

Evaluation of Ellis’ ABC cognitive model of depression

A

Only a partial explanation of depression - explains reactive depression but not other types that arise without a particular cause.

Like Beck’s theory, it has lead to successful CBT by challenging irrational negative beliefs.

As with Beck’s theory, it does not explain depression that involves hallucinations or feelings of anger.

22
Q

What is CBT?

A

Cognitive Behavioural Therapy - A psychological therapy that combines behavioural and cognitive approaches.

23
Q

What is Beck’s CBT?

A

Challenges the negative triad:
-Patient must actievly challenge their negative thoughts about self, world an future.

‘Patient as scientist’: Person has to record positive experiences to use in therapy to demonstrate reality - provides evidence for positive occurrences rather than negative occurrences

24
Q

What is Ellis’ Rational Emotive Behaviour Therapy?(REBT)

A

REBT - extends ABD model to ABCDE model:
D - for dispute (challenge) irrational beliefs.
E for effect.

Challenges negative beliefs, ABC model:
-REBT therapist identifies and challenges irrational beliefs.
-Empirical argument: disputing whether there is evidence to support the irrational belief.
-Logical argument: disputing whether the negative thoughts actually followfrom the facts.

Disputing of irrational beliefs (e.g. empirical and logical disputing) produces effect

25
Q

What are irrational belief’s (Ellis’ ABC cognitive model of depression)

A

Dysfunctional thoughts

Thoughts that interfere with a person’s happiness.

They may lead to depression and other mental illnesses

26
Q

Evaluation of CBT - Cognitive Behavioural Therapy

A

Strength: It is effective - March et al (2007):
-compared effects of CBT with antidepressant drugs, and a combination of both.
-after 36 weeks 81% of CBT group, 81% of anti-depresent group, 86% of CBT + antidepresent group were significantly improved.
-Suggest CBT just as effective as medication and helpful alongside.

Weakness: It may not be effective with the most extreme cases:
-Very severe cases - cannot motivate themselves to take on hard work of CBT.
-In this case patients must first be treated with antidepreessant medication then can resume CBT.

Limitation:
Compared to psychoanalysis, it can seen as a ‘quick fix’ - but only focuses on the present and future and not the past. The patient may need to explore their past through psychotherapy to tackle the root cause of their irrational thoughts.

27
Q

What is the Genetic/biological approach to explaining OCD?

A

Genetic vulnerability - Some people appear to be predisposed to develop OCD as a result of their genetic make-up.

Candidate genes - Specific genes are likely to be involved in vulnerability:
-Seretonin genes: e.g. 5HT1-D beta, are implicated in the transmission of seretonin accross synapses.
-Dopamine genes also implicated in OCD.

Polygenic - May be 230 genetic variations may be involved in OCD (Taylor - 2013), e.g. coding for serotonin.

Different types of OCD may result of particular genetic variations:
-aetiologically heterogeneous – i.e. a number of different combinations of genes can lead to the illness.
-Different genetic bases, e.g. hoarding disorder and religious obsession

28
Q

What is the Neural/biological approach to explaining OCD?

A

Neural explanation - Abnormal functioning of neurotransmitters and/or brain structures.
-E.g. low levels of Serotonin - Abnormal transmission of mood relevant information - mood and mental helath is affected.

Decision-making systems in lateral frontal lobes impaired/function abnormally (usually responsible for logical thinking and making decisions).

Parahippocampal gyrus dysfunction:
area associated with processing unpleasant emotions - Parahippocampal gyrus may function abnormally in people with OCD.

29
Q

Evaluation of the Genetic/biological approach to explaining OCD?

A

Strength: Twin studies - Nestadt et al (2010) - 68% of identical twins studies shared OCD as opposed to 31% of non-identical twins

Limitation: Environmental risk factors may also be involved:
- Hard to eliminate external factors from twin studies.
- Cromer et al. (2007) over half of OCD patients in sample had a truamatic event in past - OCD more severe in ones with trauma.
-Supports competing thoery - diathesis-stress model.

Limitation: hard to pinpoint exactly which genes are involved in OCD.
-several genes involved, and each genetic variation only increases the risk of OCD by a fraction - makes genetic expkanation less valuable - provides little predictive values.

30
Q

Evaluation of the Neural/biological approach to explaining OCD?

A

Strength: Drug therapy used to increase serotonin can decrease OCD symptoms - providing evidence for neural causes.

Limitation: Questions of cause and effect- did the faulty neural mechanisms cause the OCD or did the OCD illness cause the faulty neural mechanisms?

Limitation: Seretonin OCD link may not be unique to OCD:
-Many OCD suffers - also have depression (co-morbidity).
-Depression involves disruption to the seretonin system.
-Could suggest seretonin only disrupted in OCD patients because they are depressed aswell.

31
Q

What is the biological approach to treating OCD?

A

Antidepressant - Affect levels of neurotransmitters including serotonin.

SSRIs (Selective Serotonin Reuptake Inhibitors) - Increase levels of serotonin at the synapse by preventing reuptake. Fluoxetine (Prozac) is an example.

Combination treatment - SSRIs combined with psychological therapies like CBT and with other drugs.

Alternatives to SSRIs - Clomipramine and the SNRIs - for patients who don’t respond to SSRIs - increases levels of seretonin as well as noradrenaline.

32
Q

Evaluation of the biological approach to treating OCD

A

Strength: SSRIs are effective at tackling the symptoms of OCD compared to placebos:
Soomro et al 2009:
-analysis of 17 studies comparing SSRI to placebo.
-All 17 studies showed Significantly better results for SSRI than Placebo.
-Typically symptoms of OCD sufferers decline in about 70% of cases when taking SSRIs

Strength: Drug are cost and time effective compared to talking therapies:
-heap compared to therapy so good value for NHS.
-Non-disruptive to patients lives - patients can just take drug untill symptoms decline.
-HOWEVER do not tackle the underlying causes of OCD or the fact that many people may have developed OCD after a traumatic experience.

Weakness: Drugs may have side effects such as tremors, weight/gain or loss etc