It is found in the research that the lower classes have more empathy with people than the upper classes.

In 2009 a team of psychologists at the University of California, Berkeley, who were studying people from different walks of life, noticed that those from the upper classes were less good than those from the lower at discerning emotions on the faces of others. This led them to speculate that such empathy weakens as you go up the social scale.

A bionic limb receiving commands is only half the picture. To be a true replacement, it should also be able to send sensations back to its wearer, to enable him to control it precisely. And a group of researchers led by Robert Gaunt, an engineer at the University of Pittsburgh, have taken an important step towards this goal. Their paper describes a way of restoring sensation by using implanted electrodes to stimulate a patient’s brain directly.