Behaviourists explanation of development of a phobia would link a type of behaviour with an experienced or observed consequence which shape the individuals future behaviour. Behaviourist explanations fall into 2 categories: Classical conditioning, and Operant Conditioning.
Classical Conditioning - Conditioned to do a certain action when hearing a certain stimulus at the same time as normal behaviour. For example dogs salivate when food comes. Ring bell when food comes, when bell rings without food dog salivates.
Operant Conditioning - Behaviour can be shaped by a reward/punishment which reinforces the behaviour. For example if rewarded for crying to get a sweet, will cry every time.
Little Albert, 8 month old baby, mum was a nurse, most of the time spent at the hospital in Baltimore. Albert first showed no fearful reaction to a variety of stimuli including a rabbit, a dog, a rat etc. They then frightened Albert by hitting a steel bar behind his head. This created a fear response in him after they started introducing a rat and simultaneously hitting steel bars. This was repeated until Albert even cryed without steel bars and just seeing the rat. This fear also transcribed into other "furry beings" like dogs and rabbits.
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