The brain’s hemispheres are specialized for efficiency. Modern neuroscience shows lateralization enhances function without dividing the mind.

Lateralization of the brain – the tendency for the left and right hemispheres to specialize in different functions – underlies the development of a left-to-right mental number line, according to a ...

The terms "left-brained" and "right-brained" refer to the two hemispheres of the brain's cerebrum. The left hemisphere generally focuses more on speech and language, while the right hemisphere manages ...