Psychopathology : Phobias Flashcards
What is phobia?
A phobia is an anxiety disorder where a person experiences an excessive/irrational response towards a specific object or situation; The extent of the fear is completely out of all proportion to the actual stimulus.
What are the three types of phobias?
Specific phobias, social phobia and Agoraphobia
What is a specifc phobia?
The fear of specific objects or situations
- Example : spiders|snakes|the dark
What is a social phobia?
Anxiety relating to social situations
* Example : Public speakking/talking to a group of people|using a public toilet
What is Agoraphobia?
A fear of being in situations where escape might be difficult or that help wouldn’t be available if things go wrong
What are the three characteristics of a phobia?
Beahvioural, emotional coginitive
What are the behavioural characteristics of a phobia?
Panic, avoidance and Freeze
What are the emotional characteristics of a phobia?
Excessive and unreasonable :
* Fear
* Anxiety
* Panic
What are the coginitive characteristics of a phobia?
To do with thoughts
* Selective attention to the stimulus
* Irrationality of thoughts and resistance to reason
* Recognition that fear is excessive
* Cognitive disortions
How does behaviourism explain phobias?
Orvval Morwer (1947)
* Phobias are learnt and and maintained through operant and classical conditioning
* Proposed the two process model
How are phobias learned using classical conditioning?
Phobias are acquired through an association
* Classical conditioning
* NS is associated with an US
* produces a CS and CR
Stimulus generalisation
What research supports phobias being learned by association?
Watson and Raynor(1920) - Little Albert
* Conditioned little Albert to be afraid of the white rat
How are phobias maintained?
Operant conditioning
* Avoidance of/ escape from stimulus
* Rewarding→Negative reinforcement
Behaviour that is rewarded is repeated/learned
What is a strength of the behavioural explanation for phobias?
Strength: Application to therapy
A strength of the behavioural explanation is its application to therapy.
- The behaviourist ideas have been used to develop treatments, including systematic desensitisation and flooding.
- Systematic desensitisation helps people to unlearn their fears, using the principles of classical conditioning, while flooding prevents people from avoiding their phobias and stops the negative reinforcement from taking place.
Consequently, these therapies have been successfully used to treat people with phobias, providing further support for the effectiveness of the behaviourist explanation.
What is a strength of the behavioural explanation for phobias?
Strength : Research support for classical condtioning
* Watson & Rayner (1920) demonstrated the process of classical conditioning in the formation of a phobia in Little Albert, who was conditioned to fear white rats.
→However, since this was a case study, it is difficult to generalise the findings to other children or even adults due to the unique nature of the investigation.
What is a strength of the behavioural explanation for phobias?
Strength : Phobias and traumatic events
A further strength of the two-process model is evidence for a link between bad experiences and phobias.
- For example De Jongh et al. (2006) found that 73% of people with a fear of dental treatment had experienced a traumatic event involving dentistry, or violent crime), compared to a control group of low dental anxiety, where only 21% of people had experienced a traumatic event.
- The confirms the idea that the association between stimulus (dentistry) and an unconditioned response (pain) does lead to the development of phobias.
What is a weakness of the behavioural explanations for phobias?
Weakness : not all phobias appear following a traumatic experience
- In fact many common phobias, such as spiders and snakes, occur in a population where very few people report traumatic experiences. Also we have to keep in mind that not all bad experiences lead to phobias.
- This means that the association between traumatic events and phobias may not be as strong as the theory suggests and it is possible that other factors are at play, such as evolution.
What is a weakness of the behavioural explanations for phobias?
Weakness : Coginitive Elements
Another limitation of the two process model is that there are cognitive aspects to phobias that cannot be explained in a behaviourist framework and are therefore ignored.
- An alternative explanation for phobias is the cognitive approach, which proposes that phobias may develop as the consequence of irrational thinking.
- For example a person in a lift may think “I could become trapped and suffocate (irrational thought), which could lead to extreme anxiety and trigger a phobia.
- The value of this particular explanation is that it has led to cognitive therapies such as CBT, which are in some cases, such as social phobia (Engels et al.,1993) more successful that behaviourist treatments.
What is a weakness of the behavioural explanations of phobias?
Weakness : Biological preparedness
There is a claim that the behavioural approach may not provide a complete explanation of phobias.
- For example, Bounton (2007) highlights the fact that evolutionary factors could play a role in phobias, especially if the avoidance of a particular stimulus (e.g. snakes) could have increased chance of survival for our ancestors.
- Consequently, evolutionary psychologists suggest that we are predisposed to some phobias (e.g. snakes and heights) as they are in fact innate, rather than learnt, as such phobias acted as a survival mechanism for our ancestors.
- This innate predisposition to certain phobias is called biological preparedness (Seligman, 1971) and casts doubt on the two‐process model since it suggests that there is more to phobias than learning.
What are the behavioural treatments for phobias called?
- Systematic desensitisation
- Flooding
What is systematic desentisation?
A behavioural therapy designed to reduce a response to a stimulus
What does systematic desentisation involve?
- It uses counter-condtioning to help patients ‘unlearn’ their phobias, by elciting another response : relaxation instead of fear.
What are the steps of systematic desentisation?
- Anxiety Hierarchy
- Relaxation
- Exposure
What is the first step of systematic desentisation?
1: Anxiety Hierarchy
* The patient and the therapist work together to create an anxiety hierarchy, ranking phobic situations from least to most anxiety inducing