short paragraph on mothers voice
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The children were able to identify their mothers' voices 97 percent of the time, even though the sounds were very brief and contained only nonsense words, the researchers found.
Indeed, a number of previous studies have shown that children prefer their mother's voices over other people's voices, the researchers wrote in the study. For example, even in the first days of life, newborns can identify their mother's voice among the voices of other women, research has shown.
But the results of the new study showed that hearing a mother's voice affected areas of the brain beyond those involved in listening. The researchers found that when children heard their mothers' voices, parts of the brain related to emotions, rewards and facial recognition lit up more than when the children heard the voices of women the kids did not know.
"The extent of the regions [of the brain] that were engaged was really quite surprising," Vinod Menon, a psychiatry professor at Stanford, said in statement.
Moreover, the involvement of so many areas of the brain may help explain why children are able to identify their mothers' voices so rapidly, the researchers said. Some researchers have suggested that because hearing a mother's voice activates areas of the brain linked to rewards, the brain becomes trained to identify her voice more quickly, in order to reap the rewards
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