Pet-directed speech draws adult dogs’ attention more efficiently than Adult-directed speech

Humans speak to dogs using a special speech register called Pet-Directed Speech (PDS) which is very similar to Infant-Directed Speech (IDS) used by parents when talking to young infants. These two type of speech share prosodic features that are distinct from the typical Adult-Directed Speech (ADS): a high pitched voice and an increased pitch variation.
Read more: http://www.nature.com/articles/s41598-017-04671-z?source=Snapzu