behaviourists believe that all behaviours are learnt through experience via the process of conditioning.
phobias are acquired (learnt in the first place) because of classical conditioning, they are maintained due to operant conditioning.
known as the dual process model. (Mowrer, 1960)
Classical conditioning
learning through assosciation
phobias are the result of a negative experience with a feared object
whatever the phobia, the conditioned response (CR) is always going to be fear
Watson and Rayner (1920)
aimed to see if emotional responses such as fear could be conditioned
used an 11 month year old baby called Albert
shown a white rat ( NS ) and at the same time a hammer hits an iron bar behind his head (UCS)
Albert jumped and put his head in the mattress - fear (UCR)
this was repeated several times over the next week
the rat is then shown without the iron bar and without the sound
Albert responded with fear
the rat has become a conditioned stimulus and elicits a conditioned response
Operant conditioning - how phobias are maintained
learning through consequences
a behaviour that is rewarding will bereinforced which means it is likely to be repeated
negative reinforcement - individual avoids an unpleasant situation - in the case of phobias, the phobic stimulus reduces fear and this reinforces avoidance behaviour
A03 - Supporting evidence
Watson and Rayner
showed stimulus and response link
A03 - Value
the same principles can be used to unlearn phobias using counterconditioning techniques based on classical conditioning
systematic desensitisation is the most successful treatment for phobias and this lends support to the behaviourist explanation
A03 - Limitaion
incomplete explanation
does not take into account other factors such as cognitive
not everyone who experiences trauma will develop a phobia
A03 - Limitation
the dual process model also ignores the influence of nature and evolution
sometimes people develop a phobia of things that they have had no direct or indirect experience of and this can be explained by evolutionary theory
according to this, a phobia is something that has evolved over time where our ancestors may have been under threat from snakes or spiders, therefore people who feared these things are more likely to survive
thus there are other factors that can account for phobias