Unit 5 The origins of laughter

Laughter has a primarily____function.

Check (✓) the correct researcher(s) for each statement. Two statements are not connected to any researcher.

Two types of laughter probably emerged about 2 million years apart.

• Provine

• Gervais & Wilson

• Bryant

• None

Laughter improves social relationships.

• Provine

• Gervais & Wilson

• Bryant

• None

Humans can hear the difference between involuntary and voluntary laughter.

Laughter may have emerged as the size of social groups increased.

• Provine

• Gervais & Wilson

• Bryant

• None

Voluntary laughter uses the positive effects of involuntary laughter.

• Provine

• Gervais & Wilson

• Bryant

• None

Humans can distinguish between laughter among friends and among strangers.

• Provine

• Gervais & Wilson

• Bryant

• None

Dolphins also have a form of laughter.

Adults are better than children at distinguishing between types of laughter.

• Provine

• Gervais & Wilson

• Bryant

• None

Read each statement. Choose T for True, F for False, or NG for Not Given based on the information in the article.

Chimpanzee laughter sounds very similar to human laughter.

• T

• F

• NG