Jessica watches her nine-month-old son Aaron pick up cereal with his fingers. She notices that, although he once held the cereal between his fingers and palm, he now picks up the cereal using his finger and thumb. What is Aaron demonstrating?

Question

Quizplus · Accepted Answer

Aaron is demonstrating a switch from an ulnar grasp, which involves holding objects against the palm with the fingers, to a pincer grasp, which is characterized by using the thumb and one finger (usually the index finger) to pick up objects. This development is typical for infants around his age.

Jessica Watches Her Nine-Month-Old Son Aaron Pick Up Cereal with His