Hearing shapes: the Bouba–Kiki effect in adult domestic dogs

According to recent coverage from outlets including Phys.org, ScienceAlert, New Scientist, and royalsocietypublishing.org, new research demonstrates that adult domestic dogs are susceptible to the classic bouba-kiki effect. Specifically, coverage indicates that dogs appear to agree with humans by associating the sound 'bouba' with round shapes and the sound 'kiki' with spiky shapes. The studies examining hearing shapes in adult domestic animals have generated widespread reporting across scientific news platforms, detailing how animals process sensory information across different modalities. Media reporting heavily emphasizes the comparative cognitive links between humans and animals, highlighting that dogs process these abstract cross-modal correspondences similarly to people.

ScienceAlert and New Scientist frame the findings around the broader scientific understanding of animal cognition and sensory perception. Meanwhile, Phys.org and the primary publication source, royalsocietypublishing.org, focus on the experimental parameters regarding adult domestic dogs and their ability to match auditory cues with visual geometries. The context provided by the coverage places these findings within the longstanding psychological study of the bouba-kiki effect, a well-documented phenomenon in humans where nonsense words are intuitively matched with rounded or jagged shapes. Until now, the extent to which non-human species experience this form of sensory cross-wiring remained a subject of investigation.

The new studies involving adult domestic dogs establish a broader evolutionary or cognitive baseline for how different species interpret symbolic or abstract sensory data from their environments. Future developments and follow-up observations will depend on further scientific inquiry into animal sensory perception, as current coverage does not yet specify what subsequent experiments are planned. Readers and observers must monitor upcoming publications from behavioral research groups and academic journals to see if researchers expand these tests to other species or investigate the underlying neurological mechanisms driving these shape-sound associations in dogs.