Mass Hypnosis studies - crossover to ADVERTISING and Predictive Programming ;
Read Aldous Huxley BNW - Revisited , Hidden Persuaders by Vance Packard.
See also - Mind Control in America series by Steven Jacobson, deals with Mass-scale idea / perception control , different than MK-Ultra shit.
https://archive.org/stream/Brave_New_World_Revisited/Brave%20New%20World%20Revisited%20-%20Huxley%20%281958%29_djvu.txt