In brief
A recent study suggests that the way adults engage with babies could be pivotal in the evolution of human language.
In an enlightening exploration of language origins, a new study reveals that the unique way adults communicate with infants, commonly known as "baby talk" or infant-directed speech, may be a significant factor in the development of language in humans. This phenomenon, described by Johanna Schick, a linguist at the University of Zurich and author of the study, is virtually unparalleled among primates. While other mammals can produce various sounds such as barks and roars, none possess the ability to string these sounds into words or build sentences that convey limitless meanings, as humans do. To understand the roots of human language, researchers often study our closest relatives, the apes. Previous studies suggest that certain language elements may have appeared in our shared ancestors with modern apes millions of years ago. For instance, chimpanzees can produce various calls and combine them to express new ideas, an elemental feature of language formation.Babies across both species, humans and apes, require a significant period to develop their vocalizations. While extensive research exists on the language development of human infants, there is limited understanding of how wild baby apes acquire their calling skills. A remarkable trait of human communication is how adults engage in special speech patterns with infants, which often includes repetitive words, heightened syllable stress, and a melodic tone. This format is highly effective in capturing the attention of young children, even those too young to grasp the meanings of the words. Some researchers propose that infants are drawn to this style of speech because it aids them in mastering fundamental language features.
