In an Italian dance club a woman approached people and asked for a cigarette. When speaking into people's right ear she got 34 people to give her a smoke vs. only 17 if she spoke into the left ear. It shows that the brain processes sound differently based on which ear its coming from but scientists still can't understand why generosity increases if the request comes through the right ear.
Previous studies have shown that humans tend to prefer listening with their right ears - possibly because right ear auditory stream gets precedence in the brain's left hemisphere, where most linguistic processing occurs.
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