Final answer:
To reduce stranger anxiety in babies, a parent can use a soothing voice, provide security through close physical contact, let the baby observe the new person from a safe distance, and encourage gradual interaction.
Step-by-step explanation:
Reducing stranger anxiety when introducing a baby to a new person can be approached in several ways that align with the baby's developing senses and the theories of attachment. A parent can talk to the baby in a soothing voice to provide comfort, as babies show a preference for the familiar voices and are soothed by them. Holding the baby close and providing a sense of security can also help, as physical contact is reassuring for infants and promotes a sense of trust and bonding. Allowing the baby to observe the new person from a distance gives the infant a chance to become familiar without feeling threatened, utilizing their ability to differentiate between known and unknown faces. Lastly, gradual interaction is key; as babies need time to assimilate new people into their existing schemas, encouraging the baby to interact with the new person gradually can help foster secure attachment over time.