What theory explains the occurrence of laughter?

Incongruity Theory is a prominent explanation for the phenomenon of laughter. This theory posits that humor arises when there is a mismatch or discrepancy between expectations and reality. For example, a punchline in a joke often sets up an expectation, and the laugh occurs when the punchline delivers an unexpected twist that subverts those expectations. This cognitive dissonance creates a surprise that triggers laughter as a response.

Understanding this theory helps illustrate why certain scenarios or comedic setups can lead to laughter; they highlight the unexpectedness of a situation or the absurdity of it. Therefore, Incongruity Theory effectively captures the essence of humor and laughter, making it a significant explanation in the study of comedic responses.