She said that they can rewire the brain , which caused some hysteria over whether or not social networking sites are safe .
British neuroscientist Susan Greenfield stuck up for the issues that children encounter on social media sites .
Susan Greenfield said that they can rewire the brain , which caused some hysteria over whether or not social networking sites are safe .
British neuroscientist Susan Greenfield stuck up for the issues that children encounter on social media sites .