The effective analysis of electroencephalography(EEG)data to objectively reflect the changes of nociception has been a hot topic of research in recent years.The incidence of moderate to severe postoperative acute pain remains high.Postoperative acute pain seriously affects patients'physical and psy-chological health,yet there is no objective gold standard for measuring perioperative nociception to guide perioperative analgesia.The results of current studies on the characteristics of EEG changes during nociception are contradictory.This paper presents the EEG characteristics of nociception in order to provide a reference for future research design.
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