The brain is all about the action. It wants to know what’s going on with and around us so it can figure out what to do about it. Uncertainty only gets in the way of its imperative to always know and to always have an answer. Thus, the brain could be considered to be allergic to uncertainty and to the very idea of randomness.
Not only is the brain trying to figure out what’s going to happen next, it’s also trying to identify patterns to speed up and (hopefully) improve the process in the future.
In short, as far as the brain is concerned: randomness is bad; patterns are good.
Association
The part of the brain that is focused on what to do next operates via associative thinking rather than logical, linear thinking. Associative thinking (or learning) is based on finding patterns, making connections, and categorizing. Associative thinking is fast and nonlinear, and we always have access to it.
Associative thinking takes place automatically. We can’t stop our brain from doing it, which is a good thing; if the brain wasn’t able to find patterns, make connections, and categorize things, our chances of survival would be diminished, and it would take us a lot longer to learn anything. Logical, linear thinking, which is used by the conscious part of the brain (System 2), is slow, effortful, and limited.
Since associative thinking puts a premium on speed rather than accuracy, however, it makes mistakes. If errors are not corrected, they can turn into beliefs or habits of thinking, just like habits of behavior, and become part of our mental model. The more frequently we encounter an apparent pattern or connection, the likelier we are to believe it is true and accurate. That’s also the case with classification and categorization.
Snap to It
Stereotype: fixed and oversimplified image or idea of a particular type of person or thing. (Oxford Dictionary)
We are born to judge others by how they look: our brains come hardwired with a specific face-processing area, and even shortly after birth, babies would rather look at a human face than anything else. Within their first year, they become more discerning, and are more likely to crawl towards friendly looking faces than those who look a bit shifty. By the time we reach adulthood, we are snap-judgement specialists, jumping to conclusions about a person’s character and status after seeing their face for just a tenth of a second. And we shun considered assessments of others in favour of simple shortcuts—for example, we judge a baby-faced individual as more trustworthy, and associate a chiselled jaw with dominance. —Kate Douglas, New Scientist
Other research indicates that these conclusions we begin jumping to in infancy can develop into stereotypes that then influence future interpretations as well as behavior. It’s highly likely that the brain generates all kinds of stereotypes as mental shortcuts to identify things, people, situations, etc.
Categorization
Categorization: the act of sorting and organizing things according to group, class, or, as you might expect, category. (vocabulary.com)
Categorizing is an automatic System 1 (unconscious) process. That means it’s easy; eventually tracks laid down in the brain carry us along effortlessly. We rarely question our perceptions because confirmation bias makes them feel right. While it is relatively easy—and requires no conscious attention—to lay down these tracks, the same cannot be said for changing them.
Recognizing the differences between things (distinguishing), on the other hand, is a System 2 (conscious) process that requires intention, attention, and effort. Those, in turn, require logical, linear thinking. Making distinctions can be difficult and often generates cognitive dissonance, which is uncomfortable.
Pattern Detection
Pattern recognition/detection: the imposition of identity on input data, such as speech, images, or a stream of text, by the recognition and delineation of patterns it contains and their relationships. (Brittanica, pattern recognition in computer science)
Patternicity: the tendency to find meaningful patterns in meaningless noise. (Michael Shermer)
We use our brain’s pattern-detection processes all the time: when driving a motor vehicle, listening to music, observing someone’s behavior, following a story, running experiments, playing games or sports, etc. The brain’s attempts to identify a pattern or determine if a pattern is present generate activity in the ventromedial prefrontal cortex, which is part of the reward system. That means pattern-detection is reinforced by the brain.
It’s not a stretch to imagine that most if not all of perception is a result of pattern-detection. And given that pattern-detection operates unconsciously, in the part of the brain that values speed over accuracy, it’s also not a stretch to recognize how likely it is to be fallible.
According to Jamie Hale, in PsychCentral:
Our pattern-detecting ability serves us well in many instances, but it also can lead to seeing something when there is nothing there. In the words of Rudolf Flesch:
“Instead of the black and-white, single-track, everyone-knows-that-this-is-due-to-that approach, get used to the idea that this is a world of multiple causes, imperfect correlations, and sheer, unpredictable chance. It is true that the scientists, with their statistics and their probabilities, have made a stab at the harnessing of chance. But they know very well that certainty is unattainable. A high degree of probability is the best we can ever get.”
The brain lulls us into believing that we have a good grasp of what’s happening, that certainty is attainable, and that our snap judgments are accurate perceptions of reality. However, things are not as they seem.
