Key points are not available for this paper at this time.
Forty participants (20 men and 20 women) listened individually to a recording of a radio comedy show under one of two conditions: an experimental condition, with audience laughter present, or a control condition, with laughter absent. While the participants were listening to the tape, their spontaneous responses were covertly videotaped so that the frequency of laughter and smiling could be measured. After listening to the program, the participants rated the material for funniness and enjoyment. Those participants who listened with laughter present gave significantly higher ratings of the funniness and enjoyability of the recording. Moreover, they laughed and smiled more in the experimental condition, although the score for the difference in smiling failed to reach significance. In contrast with some published studies, no differences between men and women were found--a result that is attributed to the greater ecological validity of the context and to the stimuli used in the present study.
Martin et al. (Mon,) studied this question.