He is a former Founding International Board Member of the International Transpersonal Association and a former President of the Australian Institute of Parapsychological Research. He is the Research Editor of the International Journal of Transpersonal Studies, an Associate Editor of Anthropology of Consciousness, and an Editorial Board Member for Frontiers of Psychology (Educational Psychology and Quantitative Measurement subsections). He has over 100 professional publications and his most recent books include The Survival Hypothesis (2014) and In Search of Psi (2014). He uses quantitative, qualitative and mixed-method approaches to investigative, for example, shamanic-like journeying phenomena, anomalous information reception by claimant mediums, and spiritual emergency.