Abstract
Speech Processing![Figure][1] Dogs' brains integrate praise words with their owners' intonation. PHOTO: TIERFOTOAGENTUR/ALAMY STOCK PHOTO Dogs have been domesticated for many thousands of years. Humans and dogs have thus had plenty of time to develop close communication bonds for work and play. Using brain-scanning techniques, Andics et al. investigated how dogs process human speech. The left brain hemisphere in dogs responds more strongly to praise words, and a right auditory brain region distinguishes intonation. Reward regions only light up if both the word and the intonation are consistent with praise. Hence, the subtlety of dog-human communication has become hardwired in the absence of language. Science , this issue p. [1030][2] [1]: pending:yes [2]: /lookup/doi/10.1126/science.aaf3777
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