Here he talks about materialization mediums: http://www.victorzammit.com/book/4thedition/chapter10.html
Few people realize that there are mediums active today, and have been since the golden age of Spiritualism perhaps a 100 years ago, who can literally bring spirits into bodily form of such substance that they can speak in their own voices, and touch people. People reunite in physical form with their loved ones, and this happens many times a year around the world (or so it seems credible for me to believe).
At what university are they researching this? None that I know of. Why would they, when it “can’t” be true? Why? Because they have curiosity, a concern with a better understanding of the actual human condition, and integrity. Such people are regrettably rare, nearly absent.
If you want to get the email–which nearly always has something of interest, at least to me–you can enter your email at the top of this link: http://www.victorzammit.com/week20laugh/
He has also assembled a book of evidence. It is free, and contains many, many links to further resources for data gathering.