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<p>Infants have been shown to spend a great deal of time in <a href="page.php?w=slow-wave_sleep">slow-wave sleep</a>, and thus have more delta wave activity. In fact, delta-waves are the predominant waveforms of infants. Analysis of the <a href="page.php?w=Wakefulness">waking</a> EEG of a <a href="page.php?w=newborn">newborn</a> infant indicates that delta wave activity is predominant in that age, and still appears in a waking EEG of five-year-olds. Delta wave activity during slow-wave sleep declines during adolescence, with a drop of around 25%</p><p>
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