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Cognitive biases are tendencies to think in certain ways that can lead to systematic deviations from a standard of rationality or good judgment, and are often studied in psychology and behavioral economics. Although the reality of these biases is confirmed by replicable research, there are often controversies about how to classify these biases or how to explain them. Some are effects of information-processing rules (i.e. mental shortcuts), called ''heuristics'', that the brain uses to produce decisions or judgments. Such effects are called ''cognitive biases''. Biases have a variety of forms and appear as cognitive ("cold") bias, such as mental noise,〔 or motivational ("hot") bias, such as when beliefs are distorted by wishful thinking. Both effects can be present at the same time. There are also controversies as to whether some of these biases count as useless, irrational or whether they result in useful attitudes or behavior. For example, when getting to know others, people tend to ask leading questions which seem biased towards confirming their assumptions about the person. This kind of confirmation bias has been argued to be an example of social skill: a way to establish a connection with the other person. The research on these biases overwhelmingly involves human subjects. However, some of the findings have appeared in non-human animals as well. For example, hyperbolic discounting has been observed in rats, pigeons, and monkeys. ==Decision-making, belief, and behavioral biases== Many of these biases affect belief formation, business and economic decisions, and human behavior in general. They arise as a replicable result to a specific condition: when confronted with a specific situation, the deviation from what is normally expected can be characterized by: 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「list of cognitive biases」の詳細全文を読む スポンサード リンク
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