Etzel Cardeña is the Thorsen Professor of Psychology at Lund University, Sweden where he is Director of the Centre for Research on Consciousness and Anomalous Psychology (CERCAP). He has served as President of the Society of Psychological Hypnosis (APA Division 30), and the Society for Clinical and Experimental Hypnosis. He has expressed views in favour of open scientific enquiry and the validity of some paranormal phenomena. The Parapsychological Association honored Cardena with the 2013 Charles Honorton Integrative Contributions Award. Cardena has written more than 300 publications including the books Altering Consciousness (2 volumes) and Varieties of Anomalous Experience (two editions and also published in Portuguese).