Television is Not a Passive Medium

Ever since viewing screens entered the home, many observers have worried that they put our brains into a stupor. An early strain of research claimed that when we watch television, our brains mostly exhibit slow alpha waves—indicating a low level of arousal, similar to when we are daydreaming. These findings have been largely discarded by the scientific community, but the myth persists that watching television is the mental equivalent of, as one Web site put it, “staring at a blank wall.” These common metaphors are misleading, argues Heather Kirkorian, who studies media and attention at the University of Wisconsin at Madison. A more accurate point of comparison for a TV viewer’s physiological state would be that of someone deep in a book, says Kirkorian, because during both activities we are still, undistracted, and mentally active.

Because interactive media are so new, most of the existing research looks at children and television. By now, “there is universal agreement that by at least age 2 and a half, children are very cognitively active when they are watching TV,” says Dan Anderson, a children’s-media expert at the University of Massachusetts at Amherst. In the 1980s, Anderson put the zombie theory to the test, by subjecting roughly 100 children to a form of TV hell. He showed a group of children ages 2 to 5 a scrambled version of Sesame Street: he pieced together scenes in random order, and had the characters speak backwards or in Greek. Then he spliced the doctored segments with unedited ones and noted how well the kids paid attention. The children looked away much more frequently during the scrambled parts of the show, and some complained that the TV was broken. Anderson later repeated the experiment with babies ages 6 months to 24 months, using Teletubbies. Once again he had the characters speak backwards and chopped the action sequences into a nonsensical order—showing, say, one of the Teletubbies catching a ball and then, after that, another one throwing it. The 6- and 12-month-olds seemed unable to tell the difference, but by 18 months the babies started looking away, and by 24 months they were turned off by programming that did not make sense.

Anderson’s series of experiments provided the first clue that even very young children can be discriminating viewers—that they are not in fact brain-dead, but rather work hard to make sense of what they see and turn it into a coherent narrative that reflects what they already know of the world. Now, 30 years later, we understand that children “can make a lot of inferences and process the information,” says Anderson. “And they can learn a lot, both positive and negative.” Researchers never abandoned the idea that parental interaction is critical for the development of very young children. But they started to see TV watching in shades of gray. If a child never interacts with adults and always watches TV, well, that is a problem. But if a child is watching TV instead of, say, playing with toys, then that is a tougher comparison, because TV, in the right circumstances, has something to offer.

Our brains enter a state similar to that of reading a book when watching TV. Children are able to make sense of TV and are actively engaged with it.