And how true is it that simulated violence impels some people to become violent themselves?
Some deny that simulated violence has any ill effects at all, on the grounds that people know they are watching fiction.
Mr. Garcia Wehbi said the simulated violence is intended to work "as a mirror."
The most comprehensive study, published in The Journal of Communication, shows that less than five percent of pornography contains simulated violence.
Though full of the kind of simulated violence achieved by special-effects artists, it's not too heavy on suspense.
Pro wrestlers have always taken pride in their ability to stage simulated violence.
The modern dancers, however, have discovered a way of moving in which simulated violence can metamorphose into tenderness.
Bill Clinton talks of hundreds of studies demonstrating a connection between simulated violence and the real thing, but he overstates the data.
It includes frequent profanity, grotesque props and makeup, simulated violence and brief nudity.
Researchers estimate that the average child will watch 100,000 acts of simulated violence before graduating from elementary school.