Researchers said developing brain activity in teenagers causes them to respond better to unfamiliar voices than their mothers’.
NEW YORK, NEW YORK - OCTOBER 28: People wear face masks on the red steps in Times Square as the city continues the re-opening efforts following restrictions imposed to slow the spread of coronavirus on October 28, 2020 in New York City. The pandemic
They believe that around the age of 13, developing brain activity tends to make a mother’s voice no longer unique to her teenage children. That’s compared to when children are much younger and more open to listening to their mothers. For the study, researchers recorded mothers saying three nonsense words to their teenagers. They chose nonsense words to ensure participants would not respond to words that would trigger a meaning or emotional content.
The teens then underwent an MRI and listened again to the voice recordings as well as household sounds such as a dishwasher running. This allowed researchers to see how their brains responded to voices compared to other non-verbal sounds. "Just as an infant knows to tune into her mother’s voice, an adolescent knows to tune into novel voices," said lead study author Daniel Abrams, Ph.D.. "As a teen, you don’t know you’re doing this. You’re just being you: You’ve got your friends and new companions and you want to spend time with them. Your mind is increasingly sensitive to and attracted to these unfamiliar voices.
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