Open in the curiosity app
Share the knowledge!

When Grunting is More Effective Than Speaking | HowStuffWorks NOW

Key Facts In This Video

  1. A 2016 study found that it takes only 1/10 second for someone to understand the intent behind a vocalization. 00:34

  2. 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

  3. The more anxious the person, the more sensitive they were to all of the vocalizations, particularly anger. 01:30