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This is Scientific American 60-Second Mind, I'm Christie Nicholson.Got a minute?

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Brain-training games claim that testing memory, attention and other forms of cognition will improve one's overall intelligence and brain function.

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And it's probable that such games do improve performance on a specific task.

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But it's unlikely that there's a general improvement.

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Well.that's according to a study in the Journal of Neuroscience.

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Sixty men and women played a computer game that tested their ability to withhold an action.

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The subjects saw a "go" signal, an arrow pointing either left or right,

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and they had to press a key, as quickly as possible, that corresponded to the signal's direction.

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But 25 percent of the time a beep sounded just after the arrow appeared—which meant to not press the key to basically withhold the action.

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Compared with a control group that never got the inhibitory beep, the game players' exhibited heightened levels of activity in regions of the brain that control inhibitory action and emotion.

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But researchers found no change in other areas, for instance those that support working memory.

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The researchers write that while brain-training games might temporarily improve a specific task, in this case inhibitory control,

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they may not lead to a general improvement in overall brain function.

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But they may still be fun.

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Thanks for the minute, for Scientific American 60-Second Mind. I'm Christie Nicholson.

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