We have four brain hemispheres — a left and right cerebral hemisphere and a left and right cerebellar hemisphere. I call these the left and right “Up Brain and Down Brain.” In this split-brain model ...

Some of the most complex cognitive functions are possible because different sides of your brain control them. Chief among them is speech perception, the ability to interpret language. In people, the ...

The idea that the human brain is divided into a logical left half and a creative right half has become one of the most enduring metaphors in psychology and popular culture. While this simplification ...

Severing the connection between the two halves of the brain reveals how the hemispheres function. The two hemispheres of the brain communicate via a bundle of fibers called the corpus callosum. For ...