Stanford Research Institute experimental psychologist Keith Harary, and Russell Targ, a physicist also from Stanford, wrote a book titled 'Mind Race' (as in 'space race'). It contains a section on the exploitation of psychic phenomena, or the promise of psychic phenomena, by cults.
Both were well aware of Scientology, and had worked with Ingo Swann, who did Scientology's "OT levels," and later (after leaving) described them as "disappointing." Swann claims to have been a natural psychic since childhood.
http://www.forum.exscn.net/showpost.php?p=49829&postcount=8
From the book, 'Mind Race':
"You won't find these groups listed under 'cults' in the Yellow pages. For income tax and public relations purposes, most refer to themselves as 'Churches'. But cults differ from traditional churches in several important ways...
"In our society, a person who is beginning to experience emerging psychic abilities, or who is interested in doing so, has almost nowhere to turn for guidance. Anyone with a purely scholarly interest in Psi research can write to various laboratories or read the research reports. But this information probably will not be of much practical personal use...
"This is the dilemma that leads many people to join cults in the first place. By accepting and exploiting psychic phenomena in a society that does not readily accept them, cults have effectively monopolized the subject of psi. They have exploited many people who are interested in learning about the area, and frightened many others away from ever considering the possibility...
"People are often drawn into cults that claim to offer explanations for psychic functioning, but at great personal, emotional, and financial expense to their followers.
We think that giving away your mind is too high a price to pay for psychic development...
"For some people, the exposure to the possibility of developing their own psychic potential, which some cults appear to provide, may initially help certain individuals pay attention to areas of their own awareness that they might not otherwise consider exploring.
"But
prolonged exposure to any cult's treatment of psychic abilities may seriously restrict the way its initiates view psychic functioning. And it may keep them from fully developing their actual psychic potential...
"
Despite claims to the contrary by numerous factions, there is no evidence of an exclusive relationship between psychic functioning and any particular leader, doctrine , or way of life. Scientific evidence does strongly suggest that the ability to function psychically is a genuine human capacity which, for many people, seems to improve with practice."