The Teen Brain on Technology | NewsHour Extra: Video ClipBoard | PBS - 0 views
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Katie Day on 24 Apr 11"What is constant multi-tasking doing to teens' brains? That's the question NewsHour Science Correspondent Miles O'Brien set out to answer as he interviewed teens and neuroscience experts around the country. Scientists at the National Institutes of Health are currently studying whether teens' addictions to technology are wiring their brains differently than those of their parents and earlier generations. During adolescence, brain connections are "pruned" - those that are used a lot are strengthened, while those that are rarely used fall off. According to a scientist at UCLA who also studies the effects of technology on teens' brains, the brain's release of the chemical dopamine has a lot to do with why technology can become addictive for young people. When the brain experiences something pleasurable, like connecting with others via social networking, it is hard-wired to want more of it by releasing dopamine. Yet other researchers say multi-tasking and playing intense video games can actually help develop some skills like better vision and improved short-term memory. Because modern technology is still in its infancy, scientists are only uncovering the beginnings of how it will affect the human brain functions of tomorrow.
