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

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For one <strong>of</strong> those studies, launched <strong>in</strong>1989 and still ongo<strong>in</strong>g, Pr<strong>of</strong>essor Kaganand his team gathered five hundredfour-month-old <strong>in</strong>fants <strong>in</strong> his Laboratoryfor Child Development at Harvard,predict<strong>in</strong>g they’d be able to tell, on thestrength <strong>of</strong> a forty-five-m<strong>in</strong>ute evaluation,which babies were more likely toturn <strong>in</strong>to <strong>in</strong>troverts or extroverts. Ifyou’ve seen a four-month-old babylately, this may seem an audaciousclaim. But Kagan had been study<strong>in</strong>gtemperament for a long time, and hehad a theory.Kagan and his team exposed the fourmonth-oldsto a carefully chosen set <strong>of</strong>new experiences. <strong>The</strong> <strong>in</strong>fants heardtape-recorded voices and balloons popp<strong>in</strong>g,saw colorful mobiles dance beforetheir eyes, and <strong>in</strong>haled the scent <strong>of</strong> alcoholon cotton swabs. <strong>The</strong>y had wildlyvary<strong>in</strong>g reactions to the new stimuli.291/929

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