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第1段

1 .This is Scientific American 60-Second Science. I'm Sophie Bushwick. Got a minute?

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2 .A steaming mug of coffee helps me wake up in the morning.

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3 .But it can do more than just keep your eyes open.

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4 .Caffeine may actually boost your memory.

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5 .Researchers gathered 160 uncaffeinated adults, people who consumed less than 500 milligrams of caffeine a week.

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6 .These decaf subjects looked at pictures of various objects, then took either a placebo or a pill containing 200 milligrams of caffeine.

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7 .That's roughly the amount you'd get from two cups of coffee.

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8 .The next day, participants examined a fresh set of pictures: some brand new, some from the previous day, and some that just looked similar to the old images.

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9 .Both groups could identify new and old pictures equally well.

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10 .But the caffeinated group was better at correctly labeling images that were similar but not identical.

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11 .The placebo group tended to mistakenly identify these pictures as the same as the previous day's.

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12 .The work is in the journal Nature Neuroscience.

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13 .So caffeine does more than help you stay alert.

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14 .Get the picture?

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15 .The study subjects did.

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16 .Thanks for the minute, for Scientific American 60-Second Science. I'm Sophie Bushwick.

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