Radical Honesty
Radical Honesty is a technique and self-improvement program developed by Dr. Brad Blanton. The program asserts that lying is the primary source of modern human stress, and speaking bluntly and directly, even about painful or taboo subjects, will make people happier by creating an intimacy not possible while hiding things.
The Radical Honesty technique includes having practitioners state their feelings bluntly, directly and in ways typically considered impolite.
The character Eli Loker, played by Brendan Hines, from the 2009 FOX series Lie to Me adheres to Radical Honesty during the first season. From the website bio of the character in the first season: “Eli Loker is Lightman's lead researcher, who is so uncomfortable with the human tendency to lie that he's decided to practice what he calls "radical honesty." He says everything on his mind at all times and often pays the price.”
In the Divergent series, the Candor faction is dedicated to practicing Radical Honesty.
Writer A.J. Jacobs devotes a chapter in the book The Guinea Pig Diaries to his attempts to live according to the precepts of Radical Honesty. Author Brandon Mendelson is known as a practitioner of a modified form of Radical Honesty.
At a Moth Mainstage event in 2009, radio producer and writer Starlee Kine related her experience with Radical Honesty, which she labelled a cult. Kine described a seminar where Blanton was verbally abusive and at one point urged her to sign a contract to obey him completely for the duration of the seminar.
In the last book of the Uglies series by Scott Westerfeld, a character named Frizz Mizuno invented a surgical brain procedure called "Radical Honesty" that renders him unable to lie. In fact, if he hears someone tell a lie when he himself knows the truth, he can't even simply not speak—he has to reveal the truth under any circumstances. Even at the possible cost of his own life and the lives of people he cares about, he still can't lie to save them, because his brain is to speak the truth.
...
Wikipedia