Psychological tests occur most often! Are you a left brain or a right brain? What s the difference?

Regarding the brain, the most common myth (probably the same as the saying "A person only uses 10% of the brain in his life") is: humans may have distinctions between left and right brain people. According to this myth, your personality and "knowledge" will be determined by which brain you are more powerful, while the brain on the left and right have distinct functions. The left brain speaks in charge of analysis and language, while the right brain is responsible for creativity and emotions. Where did this myth come from? How true is it?

The earth is divided into north and south, and the brain is divided into left and right

First of all, everyone must first understand what the left and right brains are. This refers to the left and right hemispheres of the brain, just like the common brain images (see the picture below).

The left and right half of the brain form the brain's cortex, which is the largest and outermost part of the brain, divided into two hemispheres on the left and right, and separated by a slit (or cleft) in the middle. Normally, the left and right half brains will be connected by neural fibers as bridge beams, especially the neural fibers called "corpus callosum", with more than 600 million neural fibers in it. The left and right half brains use this to communicate and cooperate, and the perceptual information of the external world will also enter the left and right half brains at the same time, so the left and right half brains usually receive equal amounts of information input.

Because of this, curious scientists will naturally want to know what will happen if the callus cleaves and form the so-called "brain cleavage"? So, American neuropsychologist Roger Sperry began to experiment with a brain-breaking cat in the 1960s (he later won the Nobel prize for this study). Finally, he and Michael Gazzaniga, the father of cognitive neuroscience, were invited to conduct a human body experiment. In order to reduce the disease, the two people cut the patient's callus through surgical treatment, creating a series of profound and profound studies.

Experience shows that the functions of the left and right brains are different. The most obvious discovery is that most patients have difficulty making language in their right brain. The results of these experiments are very detailed and complicated. If they are published directly in the popular science report, it will be difficult to understand. Therefore, many of them are oversimplified and even circulated in generalized academic statements.

Dialectics that are neither scientific nor objective

In 1973, the New York Times Magazine published an article with the title "We Are Left-Brained or Right-Brained, opened his head and wrote: "Our brains live in two very different people (omitted)……… one is good at language and analysis, and the other is good at art. "After this, "Time", "Harvard Business Review", and "Psychology Today" also published similar articles, and this well-known scientific myth was born! The division between the left and right brain has now become the most concise summary of the "knowledge method": the left brain is a smart but uninteresting sensationist with a self-disguised direction; the right brain is a stupid but unrestrained artist, strong emotions and creative artist. But Sperry himself also warned: "The dichotomy of the left and right brain-knowledge method observed by experiments is just a general concept, and such a dichotomy is easy to get out of control." If Sperry had knowledge underground, he probably wouldn't have expected that his studies would lose control to this level, right?

After that, psychologists repeatedly pointed out the mistakes of the bipartite outline of the left and right brain. In 2013, a clear evidence appeared in the study of neuroscientists at the University of Utah. They scanned the brains of more than a thousand people and concluded that "the sideways of the brain function are obviously only local phenomena occurring in small areas, not the general characteristics of the entire brain network; the study of data cannot help the person's overall brain phenotype ( phenotype) There is a situation where the left brain is more favorable, or the right brain is more prevalent. "In a sentence, some functions are related to the activity of some small areas of the brain, but there is no evidence that a person's brain is stronger than the other half of the brain.

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It may be better to divide it into two and a half, and it is better to divide it into two and a half.

The top-sharp neuroscientist Kara D. Federmeier said: "It seems safer to say that in most cases, we use the left and right brains at the same time." Although the brain of the patient's "branch" does not differ in some areas, it is not so clear. In other words, although the right brain cannot speak, it still involves processing certain aspects of the language, such as verbal tuning and stress. On the other hand, there is a general understanding that "the right brain is creative and the left brain lacks imagination", the conclusion obtained by Gjniga from his brain-breaking experiment is that the left brain is the center of "creative power and dictation ability."

Since all kinds of theoretical arguments cannot be extended, it may be helpful to break the difference between the left and right brain.. Top Brain, Bottom Brain: Surprising Insights into How You Think, In 2014), they proposed another method to replace the left and right brain division method, emphasizing: "The up brain is responsible for determining the plan, and modifying the plan when the situation is worse than expected; the down brain is to classify and interpret what we perceive."

"Sidealization" translation: that is, sidealization, meaning that the left and right brain have their own specialist positions.