1. From the Department of Anaesthesia and Acute Pain Medicine, Centre for Anaesthesia and Cognitive Function, St. Vincent’s Hospital, Melbourne, Australia (L.A.E., B.S.S., D.A.S.); Anaesthesia, Perioperative and Pain Medicine Unit, Melbourne Medical School, University of Melbourne, Melbourne, Australia (L.A.E., B.S.S., D.A.S.); Florey Institute for Neuroscience and Mental Health, Parkville, Victoria