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. 2019 May 3;7:174. doi: 10.3389/fped.2019.00174

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Copyright © 2019 O'Toole and Boylan.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Eight hours of aEEG from a preterm neonate (28 weeks' gestational age) from 6 h of birth. Top two channels show the aEEG from the right and left fronto-central region of the brain and the bottom two channels show 26 s of raw EEG for a point in time marked with an arrow. The aEEG is a compressed EEG signal that has been heavily filtered and then displayed on a semi-log scale. Short duration features of the EEG are impossible to recognize but overall trends are evident.