Research published in the journal of Neuroscience suggests that happy sounds, such as laughter, are infectious. When people hear these sounds, their brains activate the premotor cortical region, which prepares facial muscles to move. This may explain why laughter and other happy sounds can spread so easily from person to person.
PTELook at the text below. In 35 seconds, you must read this text aloud as naturally and clearly as possible. You have 35 seconds to read aloud.
Recorded Answer
Current status:
Beginning in 35 seconds.