We are not as free as we think but still it would not work any other way. Our mirror neurons even automatically bring actions and others into us… to some degree of saturation (or not)…
Why do we not eat all the scarce food, feeling the other’s hunger? Why are moods contagious? Why do we feel the wish to dance when we see another doing so? Why do I feel your pain when you cut your finger? Why might I get an itch when you scratch yours? How are you “out there” felt “in here”? How do your acts become mine, and my acts become yours? Mirror neurons!
Using very thin electrodes, experimenters measured the activity of a single neuron of the premotor cortex in a monkey grasping a peanut. Amazingly, a bit later, an experimenter grasped a peanut—and the same monkey neuron activated merely by watching. This was the beginning of explaining vicarious feelings—the mirroring of others’ behaviors. It seems that free will is not so impregnable; each time I witness your movements, you permeate my stronghold.
It extends to sounds, sensations, and emotions, as well, and so we can feel all of those inside of us, as if we were in another’s shoes. These brain circuits blur the bright line between your experiences and mine. Without these mirror neurons there could have been no learning; but, it goes beyond that and onto intuitive altruism. In many places in the world, people tend to share the wealth. Of course, sometimes, our desire for benefits might outweigh our empathy.
In the military, the general is at a distance that separates him or her from the suffering that their armies cause. The same for weapons that kill at a distance—empathy can then be bypassed in the service of efficiency. Otherwise, it is “Do unto others as you would have them do unto you”.
Each time we see an action, our mirror neurons mimic and transform this sight into the motor commands necessary to replicate the action; however, a neural gate blocks the immediate output of our motor areas. Behind this gate, we can covertly share the actions of people around us. We feel them, and they thus become a part of our extended self. The brain is ethical by design. It was advantageous to know anothers needs.