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When Grunting is More Effective Than Speaking | HowStuffWorks NOW
Key Facts In This Video
A 2016 study found that it takes only 1/10 second for someone to understand the intent behind a vocalization. 00:34
Not only did subjects respond more quickly to vocalizations than to nonsense words, they responded to happy vocalizations faster than to angry or sad ones. 01:13
The more anxious the person, the more sensitive they were to all of the vocalizations, particularly anger. 01:30