"There is considerable variation among individuals in the frequencies with which they have nocturnal emissions. Kinsey et al. (1948) found that there are males who never ejaculated in their sleep, males who experienced only a few wet dreams, as well as males who had two or three wet dreams per night. This variability in male experiences is not reported in the research literature except for Kinsey's work. Furthermore, the filtering process by which research literature leads to a lay acceptance of research findings had not occurred here. As a result, the media and popular literature make no mention of this variability and, in fact, this information is little known and has had no impact on the public. Shipman (1968) reports that the onset of puberty associated with nocturnal emissions, particularly ejaculation, is a traumatic event in a young male's life, with almost no prior explanation of the event. Consequently, a male's reaction is steeped in fright and misunderstanding, with no apparent resource to consult to clear up the confusion."