What type of voice is young babies especially responsive to?

Young babies are especially responsive to a high-pitched and expressive voice because it captures their attention and engages their developing auditory senses. This type of voice is often used by caregivers and parents instinctively when communicating with infants. The higher pitch tends to be more stimulating and attracts babies' interest, making them more likely to turn towards the sound and engage with the speaker. Additionally, expressive vocalizations convey emotions and intentions, which help infants to bond, learn about social interactions, and understand the nuances of communication. This responsiveness to vocal quality is instrumental in the early stages of language development as it fosters connections between the caregiver and the child.