Psy_-_Acquis,_Extinc,_Spont_Recov_-_Edu_Psy_chap5 -...

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a) Acquisition - formation of a new CR tendency. This means that when an organism learns something new, it has been "acquired". b) Extinction - this is a gradual weakening and eventual disappearance of the CR tendency. Extinction occurs from multiple presentations of CS without the US. Essentially, the organism continues to be presented with the conditioned stimulus but without the unconditioned stimulus the CS loses its power to evoke the CR. For example, Pavlov's dogs stopped salivating when the dispenser sound kept occurring without the meat powder following. c) Spontaneous Recovery - sometimes there will be a reappearance of a response that had been extinguished. The recovery can occur after a period of non-exposure to the CS. It is called spontaneous because the response seems to
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Unformatted text preview: reappear out of nowhere. d) Stimulus Generalization - a response to a specific stimulus becomes associated to other stimuli (similar stimuli) and now occurs to those other similar stimuli. For Example - a child who gets bitten by black lab, later becomes afraid of all dogs. The original fear evoked by the Black Lab has now generalized to ALL dogs. f) Stimulus Discrimination - learning to respond to one stimulus and not another. Thus, an organisms becomes conditioned to respond to a specific stimulus and not to other stimuli. For Example - a puppy may initially respond to lots of different people, but over time it learns to respond to only one or a few people's commands....
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