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Quiet: The Power of Introverts in a World That Can ... - WordPress.com

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challeng<strong>in</strong>g word game <strong>in</strong> which theyhad to learn, through trial and error,the govern<strong>in</strong>g pr<strong>in</strong>ciple <strong>of</strong> the game.While play<strong>in</strong>g, they wore headphonesthat emitted random bursts <strong>of</strong> noise.<strong>The</strong>y were asked to adjust the volume<strong>of</strong> their headsets up or down to thelevel that was “just right.” On average,the extroverts chose a noise level <strong>of</strong> 72decibels, while the <strong>in</strong>troverts selectedonly 55 decibels. When work<strong>in</strong>g at thevolume that they had selected—loudfor the extroverts, quiet for the <strong>in</strong>troverts—thetwo types were aboutequally aroused (as measured by theirheart rates and other <strong>in</strong>dicators). <strong>The</strong>yalso played equally well.When the <strong>in</strong>troverts were asked towork at the noise level preferred by theextroverts, and vice versa, everyth<strong>in</strong>gchanged. Not only were the <strong>in</strong>trovertsover-aroused by the loud noise, but they360/929

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