Much of what modern mentalists perform in their acts can be traced back directly to "tests" of supernatural power that were carried out by mediums, spiritualists, and psychics in the 19th century.
Većinu onoga što moderni mentalist obavlja u svom radu može se pratiti natrag izravno na testovima nadnaravne moći koja su provedena od strane medija, spiritualista i vidovnjaka u 19. stoljeću.