wishful thinking

Illustration from St. Nicholas: an Illustrated Magazine for Young Folks (1884) of a child imagining that a small, toy horse might pull his cart Wishful thinking is the formation of beliefs based on what might be pleasing to imagine, rather than on evidence, rationality, or reality. It is a product of resolving conflicts between belief and desire. Methodologies to examine wishful thinking are diverse. Various disciplines and schools of thought examine related mechanisms such as neural circuitry, human cognition and emotion, types of bias, procrastination, motivation, optimism, attention and environment. This concept has been examined as a fallacy. It is related to the concept of wishful seeing.

Some psychologists believe that positive thinking is able to positively influence behavior and so bring about better results. This is called the "Pygmalion effect". Studies have consistently shown that holding all else equal, subjects will have unrealistic optimism and predict positive outcomes to be more likely than negative outcomes. Research also suggests that under certain circumstances, such as when threat increases, a reverse phenomenon occurs.