Infants have been shown to be sensitive to changes in speech sounds by increasing their rate of sucking reflex when a sound changes.

Question

Quizplus · Accepted Answer

This is true. It is called the high-amplitude sucking procedure, and it is used to measure infants' ability to discriminate between different speech sounds. When infants hear a change in sounds, they increase the rate of their sucking reflex, indicating their ability to perceive the difference.

Infants Have Been Shown to Be Sensitive to Changes in Speech