Vicki laughs out loud at a joke she is reading from a magazine. One by one, her friends around her start giggling and chuckling as well, even though they are not sure what Vicki is laughing about. One even says "What's so funny?" even though she is already laughing. This scenario illustrates _____.
A) stimulus enhancement
B) contagious behavior
C) imitation
D) a social norm

Question

Quizplus · Accepted Answer

Laughter is known to be contagious; when one person starts laughing, it often triggers laughter in others around them, even if they don't know why the initial person is laughing. This is a natural, unconscious response, illustrating contagious behavior.

Vicki Laughs Out Loud at a Joke She Is Reading