光环效应是一种认知偏见，它指的是人们对个人、公司、品牌或产品的整体印象影响了他们对该实体性格或属性的感受和想法。心理学家爱德华·桑代克首次提出这一概念，并将其与宗教中圣人的光环概念相比较。光环效应不仅在吸引性和司法教育系统中研究，也广泛应用于品牌营销。人们倾向于将正面感受转移到未知特质上，形成正负双向影响。
Halo effect is a cognitive bias in which an observer's overall impression of a person, company, brand, or product influences the observer's feelings and thoughts about that entity's character or properties.[1][2] It was named by psychologist Edward Thorndike in reference to a person being perceived as having ahalo. Subsequent researchers have studied it in relation to attractiveness and its bearing on the judicial and educational systems. The halo effect is a specific type of confirmation bias, wherein positive feelings in one area cause ambiguous or neutral traits to be viewed positively. Edward Thorndike originally coined the term referring only to people; however, its use has been greatly expanded especially in the area of brand marketing.
The term "halo" is used in analogy with the religious concept: a glowing circle that can be seen floating above the heads of saints in countless medieval and Renaissance paintings. The saint's face seems bathed in heavenly light from his or her halo. Thus, by seeing that somebody was painted with a halo, the observer can tell that this must have been a good and worthy person. In other words, the observer is transferring their judgment from one easily observed characteristic of the person (painted with a halo) to a judgment of that person's character.
The halo effect works in both positive and negative directions (the horns effect): If the observer likes one aspect of something, they will have a positive predisposition toward everything about it. If the observer dislikes one aspect of something, they will have a negative predisposition toward everything about it.[3]
from: https://en.wikipedia.org/wiki/Halo_effect
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