What is commonly used to assess an infant's reaction to visual or auditory stimuli?

Question

Quizplus · Accepted Answer

Sucking behavior is commonly used to assess an infant's reaction to visual or auditory stimuli. When an infant is exposed to a new stimulus that they find interesting, there is an increase in sucking behavior. As the stimulus becomes less interesting, the infant's sucking behavior decreases. This technique can be used to measure an infant's attention span and interest in different stimuli. Vocalization, facial expression, and voice pitch can also provide information about an infant's reaction to stimuli, but they are not as reliable or consistent as sucking behavior.

What Is Commonly Used to Assess an Infant's Reaction to Visual