Infants less than 3 days old sucked on a nipple to hear their mother's voice or another woman's voice.What happened?
A)They sucked more when they could hear the other woman.
B)They sucked more when they could hear their mother.
C)They sucked vigorously but equally for either voice.
D)They stopped sucking whenever they heard either woman's voice.

Question

​Infants less than 3 days old sucked on a nipple to hear their mother's voice or another woman's voice.What happened?
A)They sucked more when they could hear the other woman.
B)​They sucked more when they could hear their mother.
C)​They sucked vigorously but equally for either voice.
D)​They stopped sucking whenever they heard either woman's voice.

Quizplus · Accepted Answer

Research has shown that infants less than 3 days old suck more vigorously and for longer periods of time when they hear their mother's voice compared to a stranger's voice. This suggests that infants have a preference for their mother's voice and are able to distinguish it from other voices.

​Infants Less Than 3 Days Old Sucked on a Nipple

Infants Less Than 3 Days Old Sucked on a Nipple