With Dogs, It’s What You Say — and How You Say It
In other words, “good boy” said in a neutral tone and “however” said in a positive or neutral tone all got the same response.
What does it all mean? For dog owners, Dr. Andics said, the findings mean that the dogs are paying attention to meaning
.. In terms of evolution of language, the results suggest that the capacity to process meaning and emotion in different parts of the brain and tie them together is not uniquely human. This ability had already evolved in non-primates long before humans began to talk.
.. he thought the experiment was well done and suggested that specialization of right and left hemispheres in processing information began to evolve well before human language.