A study at the University of Bonn revealed an unexpected difference in the information processing of humans and apes. Both can recognize very quickly, whereas a counterpart looks. The evaluation of the viewing direction is carried out in monkeys in so-called Amygdala, an evolutionarily ancient brain region. The human amygdala seems to be blind to the line of sight on the other hand. The researchers speculate that this ability was instead outsourced to the cortex. This is greatly enlarged in humans compared to animals. The results are now published in the November issue of the prestigious journal Nature Neuroscience.
See the paper here.