The mirror-neuron system.

@article{Rizzolatti2004TheMS,
  title={The mirror-neuron system.},
  author={Giacomo Rizzolatti and Laila Craighero},
  journal={Annual review of neuroscience},
  year={2004},
  volume={27},
  pages={
          169-92
        }
}
A category of stimuli of great importance for primates, humans in particular, is that formed by actions done by other individuals. If we want to survive, we must understand the actions of others. Furthermore, without action understanding, social organization is impossible. In the case of humans, there is another faculty that depends on the observation of others' actions: imitation learning. Unlike most species, we are able to learn by imitation, and this faculty is at the basis of human culture… 

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