The main aim of this overview is to discuss theoretical work and empirical studies on the proposed association between humor and playfulness. Starting point is McGhee’s (1996, Health, healing and the amuse system: Humor
as survival training. Dubuque, IA: Kendall/Hunt; 1999, The laughter remedy: Health, healing and the amuse system. Dubuque, IA: Kendall/Hunt) notion that humor is a variant of play – the play with ideas. Research on play and layfulness
is discussed in light of this proposition and an updated definition of
playfulness as a personality trait in adults is presented. The latter differentiates
among four facets; namely, Other-directed, Lighthearted, Intellectual, and
Whimsical. One methodological problem is highlighted in particular: Items
such as “I have a good sense of humor” are to be found in both, measures for
the sense of humor and playfulness and sometimes used as both predictor and
criterion in the same analysis. Overall, there is evidence that the proposed
overlap between humor and playfulness exists, but that it does not indicate
redundancy. Avenues for future research are presented.