Most Toddlers Understand That Voice Volume Affects Others Infants may be oblivious to how much their crying interferes with their exhausted parents’ sleep, but by the time they are toddlers, most understand how noises they make affect other people, a new study finds. Researchers at Georgia State University and the University of Washington say that toddlers—especially those with ... Research in Brief
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Research in Brief  |   August 01, 2015
Most Toddlers Understand That Voice Volume Affects Others
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Speech, Voice & Prosody / Research in Brief
Research in Brief   |   August 01, 2015
Most Toddlers Understand That Voice Volume Affects Others
The ASHA Leader, August 2015, Vol. 20, 16. doi:10.1044/leader.RIB1.20082015.16
The ASHA Leader, August 2015, Vol. 20, 16. doi:10.1044/leader.RIB1.20082015.16
Infants may be oblivious to how much their crying interferes with their exhausted parents’ sleep, but by the time they are toddlers, most understand how noises they make affect other people, a new study finds.
Researchers at Georgia State University and the University of Washington say that toddlers—especially those with siblings—are typically aware that the volume of their speech can influence social situations.

Toddlers who had siblings were especially likely to show awareness of the noises they made.

Although previous studies have focused on whether or not children know a sound can be heard, the authors of the new study, published in the Journal of Cognition and Development, looked specifically at the loudness of sounds.
Forty-eight children, ages 2 to 3, first played with two toys—a quiet one and a loud one. Later, a researcher presented them with a doll, instructing them either to wake up the doll or let the doll sleep, but provided no further directions on how they should behave.
“We were excited to see that young children tried to wake the baby with loud sounds. They also played quietly to let the baby sleep,” says lead author Rebecca Williamson, assistant professor of psychology at Georgia State.
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August 2015
Volume 20, Issue 8