In an article published in April 1999, researchers at the University of Toronto and Baycrest Center for Geriatric Care presented a study that examined people with brain damage for their ability to understand jokes. These scientists found that people with damage to the right frontal lobe were impaired in their ability to appreciate jokes and cartoons. These people had trouble picking out the appropriate funny punch lines of jokes and did not smile or laugh at cartoons that people without brain damage thought were funny.