Joke comprehension may decrease with age

ST. LOUIS -- A new psychology study at Washington University was no laughing matter: It found that older adults may have a harder time getting jokes because of an age-related decline in certain memory and reasoning abilities.

The research suggested that because older adults may have greater difficulty with cognitive flexibility, abstract reasoning and short-term memory, they also have greater difficulty with tests of humor comprehension.

Researchers tested about 40 healthy adults over age 65 and 40 undergraduate students with exercises in which they had to complete jokes and stories. Participants also had to choose the correct punch line for verbal jokes and select the funny ending to series of cartoon panels.

Findings were published in July's Journal of the International Neuropsychological Society.

The research conducted by graduate student Wingyun Mak and psychology professor Brian Carpenter showed that the younger adults did 6 percent better on the verbal jokes and 14 percent better on the comic portion than did older participants, Mak said.

But who decides what's funny?

The researchers, citing past work in the field, wrote that humor research is "rooted in the philosophical notion that humor arises from a sense of incongruity, a conflict between the expected and the actual."

Researchers used a verbal joke test developed in 1983 and used in other humor studies. Mak added a new element, though, by showing participants cartoons from the Ferd'nand comic strip, and asking them to choose between four panels to locate the funny ending. Three of the choices for each cartoon were the wrong ones, created by an artist for the study.