Below is the link to the supplemental paper to the presentation given by PRF Research Director Bryan Williams on poltergeists and psychokinesis ("mind over matter") at the April meeting of the New Mexico UFO & Paranormal Forum on April 15, 2017. The paper is available to view in Adobe PDF format:
Readers who would like to have a broader overview of poltergeist phenomena should also consult the primer on poltergeists that was written in 2011 by Williams and Annalisa Ventola, the host of the Public Parapsychology website and the Executive Director of the Parapsychological Association. The primer is also available in Adobe PDF format at the following link: