Luke, David ORCID: 0000-0003-2141-2453 (2008) Entheogens as a bridge between paranormal and religious experience. In: IV Encontro Psi: Parapsicologia & Psicologia - 4th Psi Meeting: Parapsychology & Psychology, 10-13th July 2008, Curitiba, Brasil. (Unpublished)

Luke, David ORCID: 0000-0003-2141-2453 (2008) Sacramental plants and their role in understanding the possible neurochemistry of psi. In: IV Encontro Psi: Parapsicologia & Psicologia - 4th Psi Meeting: Parapsychology & Psychology, 10-13th July 2008, Curitiba, Brasil. (Unpublished)

Luke, David P. ORCID: 0000-0003-2141-2453 , Roe, Chris A. and Davison, Jamie (2008) Testing for forced-choice precognition using a hidden task: two replications. In: Proceedings of presented papers - 4th Psi Meeting: Parapsychology & Psychology - IV Encontro Psi: Parapsicologia & Psicologia. Faculdades Integradas Espírita, Curitiba, Brasil, p. 106.