Which of these stimuli is LEAST likely to elicit a smile in a 2-month-old infant?
A) a smiling stranger
B) an interesting object
C) being able to control a particular event
D) a parent's tickle on the tummy

Question

Quizplus · Accepted Answer

At 2 months old, infants are more responsive to social stimuli, such as faces and physical interaction, than to inanimate objects. Smiling at interesting objects is a behavior that typically develops later as infants become more aware of their surroundings and begin to engage more with the physical world.

Which of These Stimuli Is LEAST Likely to Elicit a Smile