We have a tendency to perceive
events that have already occurred or facts that have already been established as
obvious and predictable things, despite the lack of sufficient initial
information to predict them.
How does it work? Whatever
happens, nothing should ever take us by surprise – we can't look like fools, so
we prefer to edit our memories. Soon, there is a situation that we would prefer
to know in advance. We do not back down, but on the contrary, we convince
ourselves that we have assumed so.
This error can distort memory
processing, in particular, how to restore and reproduce past experiences. This leads
to false theoretical conclusions. Thus, the effect can cause serious
methodological problems at the stages of analysis and interpretation of the experimental
studies results. For example: "I thought so!" or "I knew it from
the beginning!"
Another thing is when
a person in a situation that makes a positive impression on them. There is an
unconscious "attribution" to them for other positive qualities; if
they do not appear to them later.
The
halo effect is not limited to social phenomena. For
example, people consider a hamburger from a bun, meat, and salad is less
caloric than a hamburger with a bun and meat. Although it is not logical, as
the salad cannot reduce the calories. This is called the Healthy Food Halo
Effect. Thus, consciousness and psychology distort our perception and influence
our emotion.
Source: Andrey’s Letter