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

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When you hear an unfamiliar tune, how do you wind up either tapping your foot or plugging your ears?

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A study finds that a specific brain region gives the song a thumbs up or down.

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The research is in the journal Science.

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As 19 subjects listened to samples of unfamiliar songs, their brains were scanned with a functional MRI machine.

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After hearing each clip, the subjects could bid between zero and two dollars to purchase the song.

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And the values participants assigned to songs were associated with activity in the nucleus accumbens, a section of the brain's pleasure center.

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For more popular tunes, this region was more active and communicated more with the brain region that stores auditory information.

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The scientists think the nucleus accumbens, which helps set expectations,

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draws on stored musical knowledge to predict how a new tune will play out.

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When the music fulfills or even exceeds these expectations, the listener feels rewarded.

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So your listening history helps determine whether you'll like a new song - or tell it to hit the road.

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

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