Roller coaster
Media playback is unsupported on your device

Does screaming make rollercoasters scarier?

Thousands of people will head to theme parks this Summer holiday for the thrill of the big rides but is screaming a vital part of the experience?

It is a question which is now attracting academic interest.

Mike Bushell went to help find out.

Go to next video: Tag rugby teams aim for Twickenham