At a party, a friend of yours keeps popping balloons with a burning cigarette. By the time he is about to pop the fifth balloon, you notice your muscles tense and you squint each time the cigarette nears the balloon. Which of the following applies to this example?

Question

Quizplus · Accepted Answer

The popping sound is an unconditioned stimulus (US) because it naturally causes a reflexive response, such as squinting or tensing muscles, without prior learning.

At a Party, a Friend of Yours Keeps Popping Balloons