Benjamin is a two-month-old baby who accidentally discovers his thumbs. He waves them around for a while and then sticks one of them in his mouth. He repeats this for a few times. Benjamin's behavior is an example of:

Question

Quizplus · Accepted Answer

Benjamin's behavior of waving his thumbs around and then sticking one in his mouth is an example of a primary circular reaction. Primary circular reactions are simple, repetitive behaviors that infants engage in for their own sake, and they focus on the infant's own body. In this case, Benjamin is repeating a behavior that feels good to him (sucking on his thumb) and exploring the cause-and-effect relationship between his actions (waving his thumbs) and the resulting sensation (thumb sucking).

Benjamin Is a Two-Month-Old Baby Who Accidentally Discovers His Thumbs