Study suggests link between sound, emotion may be key to understanding how language is used, learned and has evolved

June 1, 2026 - 19:19

"Tick-tock." "Hiss." "Screech." These words are classic examples of onomatopoeia because they directly imitate the sounds they describe: the steady rhythm of a clock, the warning of an angry cat, or a high-pitched scream. Onomatopoeia is a specific type of sound symbolism, where the sound of a word reflects its meaning. A new study suggests that this link between sound and emotion could be essential for understanding how language is used, how it is learned, and how it has evolved over time.

Researchers argue that these sound-meaning connections are not just a quirky feature of language but a fundamental building block. By examining how different cultures use sound to convey emotional states, the study proposes that our ability to associate certain sounds with specific feelings may have helped early humans develop shared symbols for communication. For example, sharp, abrupt sounds often signal danger or urgency, while softer, flowing sounds can indicate calmness or comfort.

This perspective challenges the long-held view that the relationship between words and their meanings is mostly arbitrary. Instead, it suggests that emotion serves as a universal bridge, making it easier for children to grasp new words and for languages to change over generations. The findings point to a deeper, more intuitive connection between the way we speak and the way we feel, offering a fresh look at the very origins of human speech.