NYT: The first myth is that we use only a small portion — 10 percent is the figure most often cited — of our brain. The newly released movie “Lucy,” about a woman who acquires superhuman abilities by tapping the full potential of her brain, is only the latest and most prominent expression of this idea.

Another such myth is the idea that the left and right hemispheres of the brain are fundamentally different. The “left brain” is supposedly logical and detail-oriented, whereas the “right brain” is the seat of passion and creativity. This caricature developed initially out of the observation, dating from the 1860s, that damage to the left hemisphere of the brain can have drastically different effects on language and motor control than does damage to the right hemisphere.

In recent years, a new myth about the brain has started to emerge. This is the myth of mirror neurons, You might hear it said, for example, that watching a World Cup match is an intense experience because our mirror neurons allow us to experience the game as if we were on the field itself, simulating every kick and pass.