Scientists have tried to establish how the dog recognizes human speech. You know, animals can't understand the meaning of the sentences, however, perceive and perform.
It turned out commands do not cause the dog's emotional reactions. 4 out of 5 dogs, if you can hear the voice of his master, turn your head to the right. There is a concentration on said team, but not emotion. If the command is uttered inaudible, animals often turn your head to the left. Scientists believe that some dogs are able to catch the mood of his master, the intonation.
The obtained data testify about the specifics of processing in the brain of the dog signal. Similar mechanisms does the human brain: hemispheres are responsible for different functions, forming interconnected neural connections.