<unk>  is a term coined by Edward de Bono, a Maltese psychologist, physician and writer. It first appeared in the title of his book The Use of<unk> , published in 1967. De Bono defines<unk>  as methods of<unk>  concerned with changing concepts and perception.<unk>  is about reasoning that is not immediately obvious and about ideas that may not be obtainable by using only traditional step-by-step logic.
Lateral thinking
Multistable perception
Ego Integrity
Impaction
Moving pages
Belief propagation
Affectional bond
Aversion to happiness