As a result of being paired with a loud noise, a flashing light has come to elicit a startle reflex. When the flashing light is repeatedly presented without the loud noise, the startle reflex eventually stops occurring. This process in which a conditioned stimulus is no longer able to elicit a conditioned response is referred to as:
respondent extinction

respondent extinction  

Explanation:

Respondent extinction: In psychology, the term "respondent extinction" is also written as simply extinction, and is described as a process in which a specific behavior is being terminated that has been conditioned earlier in an organism including animal and human beings via "behavioral conditioning processes". Extinction occurs when reinforcement to a specific behavior is being discontinued.

In the question above, the given statement signifies the "respondent behavior".

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