Are computers messing with circuitry of human brains?

What does a teenage brain on Google (Nasdaq: GOOG) look like? Do all those hours spent online rewire the circuitry? Could these kids even relate better to emoticons than to real people?

These sound like concerns from worried parents. But they're coming from brain scientists.

While violent video games have gotten a lot of public attention, some current concerns go well beyond that. Some scientists think the wired world may be changing the way we read, learn and interact with each other.

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