Dogs Tune In to Consonants, Not Vowels, in Human Speech

A recent study by researchers at Eötvös Loránd University examined how companion dogs process human speech. Twenty Hungarian‑speaking owners and their dogs listened to continuous streams of nonsense words while EEG monitors recorded brain activity. The streams varied in whether consonants or vowels formed the repeating patterns, or whether syllables were random. Results showed that dogs’ neural responses were 42 % stronger for consonant‑based patterns than for vowel‑based ones, and 55 % stronger than the random condition. Humans also showed a preference for consonants, but the effect was smaller (≈25 % higher). The researchers suggest that living with human speech reshapes canine auditory brains, and that giving a dog a name with more consonants may capture its attention better.