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In psychology and logic, rationalization or rationalisation (also known as making excuses) is a defense mechanism in which controversial behaviors or feelings are justified and explained in a seemingly rational or logical manner to avoid the true explanation, and are made consciously tolerable—or even admirable and superior—by plausible means. It is also an informal fallacy of reasoning.
Rationalisation happens in two steps:
Rationalization encourages irrational or unacceptable behavior, motives, or feelings and often involves ad hoc hypothesizing. This process ranges from fully conscious (e.g. to present an external defense against ridicule from others) to mostly unconscious (e.g. to create a block against internal feelings of guilt or shame). People rationalize for various reasons—sometimes when we think we know ourselves better than we do. Rationalization may differentiate the original deterministic explanation of the behavior or feeling in question.[clarification needed]
Quintilian and classical rhetoric used the term color for the presenting of an action in the most favourable possible perspective. Laurence Sterne in the eighteenth century took up the point, arguing that, were a man to consider his actions, "he will soon find, that such of them, as strong inclination and custom have prompted him to commit, are generally dressed out and painted with all the false beauties [color] which, a soft and flattering hand can give them".
According to the DSM-IV, rationalization occurs "when the individual deals with emotional conflict or internal or external stressors by concealing the true motivations for his or her own thoughts, actions, or feelings through the elaboration of reassuring or self serving but incorrect explanations."
Egregious rationalizations intended to deflect blame can also take the form of ad hominem attacks or DARVO. Some rationalizations take the form of a comparison. Commonly this is done to lessen the perception of an action's negative effects, to justify an action, or to excuse culpability:
Based on anecdotal and survey evidence, John Banja states that the medical field features a disproportionate amount of rationalization invoked in the "covering up" of mistakes. Common excuses made are:
Ernest Jones introduced the term "rationalization" to psychoanalysis in 1908, defining it as "the inventing of a reason for an attitude or action the motive of which is not recognized"'—an explanation which (though false) could seem plausible. The term (Rationalisierung in German) was taken up almost immediately by Sigmund Freud to account for the explanations offered by patients for their own neurotic symptoms.
As psychoanalysts continued to explore the glossed of unconscious motives, Otto Fenichel distinguished different sorts of rationalization—both the justifying of irrational instinctive actions on the grounds that they were reasonable or normatively validated, and the rationalizing of defensive structures, whose purpose is unknown on the grounds that they have some quite different but somehow logical meaning.
Later psychoanalysts are divided between a positive view of rationalization as a stepping-stone on the way to maturity, and a more destructive view of it as splitting feeling from thought, and so undermining the powers of reason.
Leon Festinger highlighted in 1957 the discomfort caused people by awareness of inconsistent thought. Rationalization can reduce such discomfort by explaining away the discrepancy in question, as when people who take up smoking after previously quitting decide that the evidence for it being harmful is less than they previously thought.
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