TV And The Human Brain

The thing about studies is that they often confirm what common sense tells us. Most people know that watching too much TV will addle the brain. Moreover, there is evidence that TV watching is addictive. As Marie Winn says in her interesting book The Plug-In Drug, “The entry into another world offered by reading includes an easily accessible return ticket. The entry via television does not. In this way television viewing, for those vulnerable to addiction, is more like drinking or taking drugs — once you start it is hard to stop.”

But more serious than its effects on adults, are the effects it has on our children. Parents tell their children over and over “it will turn your brain to mush.”  Studies since as early as 1972 tend to confirm what we all know in our gut: TV has deleterious effects on brain development. It may not turn the brain to mush, but it doesn’t allow the left hemisphere of the brain to develop properly. It is not only addictive, it is stupefying.

Jane Healy wrote the definitive book on the subject, as I see it, when she wrote Endangered Minds. She was very cautious in her conclusions, but her book draws on a number of studies — such as the ones in 1987 involving Positron Emission Tomography (PET scans) that show that “environmental factors can alter neutron pathways during early childhood and long after.” This was startling news at the time as there was considerable disagreement whether environmental factors had any effects whatever on brain development. But the studies show disturbing effects. Children, especially at early ages, need human interaction. They learn language from humans, not from TV and radio. As a New York Times science writer said at the time the studies were conducted, “The words have to come from an attentive, engaged human being. As far as anyone has been able to determine, radio and television do not work.”

The problem with TV, radio, computers, iPhones, iPods, etc. is that they are not human and they do not engage the brains of the users fully. They are essentially passive media and the user simply acts like a receptor, not fully engaged in what is happening. Note how young children stare trance-like at the TV when viewing their programs.  Even highly regarded TV shows like “Sesame Street” engage only a part of the child’s brain and leave the major portions of it untouched. This is critical because there are small “windows” in the child’s brain development and once those windows are closed, it is difficult, if not impossible, to engage that part of the brain later on. In a word, TV (for example) has long-lasting effects. And those effects involve such vital things as language development. As Marie Winn points out in the book referred to above, “… a carefully controlled study designed to explore the relationship between television viewing and the language spoken by preschool children discovered an inverse relationship between viewing time and performance on tests of language development; the children in the study who viewed more television at home demonstrated lower language levels.”

The hampered ability to use language handcuffs the child throughout school and on into later life. Language is essential to thought and more than ever we need people who are not only articulate, but also able to think through the masses of information that overwhelm them each day and separate the nonsense from the essential truth — if there is any. If this is not always apparent it is especially so as elections come around and voters are called upon to make decisions that can affect them and their descendants for years to come.

In a word, parents would be well advised to turn the TV off for several hours at the end of each day and spend time with their kids talking, telling them stories, reading to them, having them read, and having them make up stories themselves. To refer again to Marie Winn’s  book referenced above, “TV Turnoffs organized by schools and libraries throughout the country. . .demonstrated that when competition from the TV is eliminated, children simply and easily turn to reading instead.” Further, I don’t think we should be overly anxious to have the schools incorporate electronic devices into the early years of a child’s education, either. Human contact and human interaction are essential. The more kids use words the more adept they will become and the more active the left hemisphere of their brains will be — and this is essential to their future success.

And as a footnote to this discussion, it would seem that we should look elsewhere than at our teachers when pointing to low test scores and the inability of our kids to do well in math and language. Teachers might do better than they do, perhaps, but it all starts at home.

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3 thoughts on “TV And The Human Brain

  1. Your last paragraph says it all. A child’s education is the responsibility of the parent. The school is only one of many tools available to the parent.

  2. Great research! It is so true that there is so much information overload and figuuring out how to differentiate the fact from fiction. Tthanks ffor continuing my education, as usual!

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