Perceptual -User Interfaces: Affective Perception
Imagine you have just logged into your new computer, and it is displaying some of its fancy features. It then begins asking you a series of questions. You are in a hurry to get to your email, but it pops up with yet another start-up window to set some option that is not necessary to configure now. You exhale, frown, mutter something under your breath, and proceed to type with a little more speed and intensity.