Another critique of the behaviorist model of conditioning is that, according to this principle, the behavior should be extinguished if the stimulus stops occurring. We know this does not hold true. Even if you do not see the people you are attached to, you will most likely continue to have a desire to see them, and will seek closeness with them. It seems that even though ongoing 'reinforcement' is non-existent, once attachment is formed, it persists. It is clear that behavioral mechanisms simply cannot be used adequately to explain and account for the most basic findings that support attachment theory.