Daniel Kahneman. Think slowly... Solve quickly (№ 391349)

Various causes of ease or strain acting on both sides. In a state of cognitive ease, you probably are in a good mood, you like what you see, you believe what you hear, trust their hunches and assess the situation as comfortable and familiar. In addition, you are likely to talk carelessly and superficially. Feeling the tension, you're likely to be vigilant and prone to suspicion, will invest more effort in their occupation, will feel not so comfortable and make fewer mistakes, but you will be less usual to use intuition and creativity.