Created a phobia in Albert by showing him a rat (which he was comfortable with) and then accompanying it with a loud bang
The noise (unconditioned stimuli) created fear (unconditioned response)
The rat (neutral stimulus) and the noise (unconditioned stimulus) were paired so that the rat becomes associated with the noise to create a fear associated with the rat
The rat is now the 'conditioned stimulus' which produces the 'conditioned response' (fear).
The conditioning was then generalised to similar objects e.g. a rabbit