Isolated in their own worlds, people with appear indifferent and remote. They are normally unable to form emotional bonds with others. Although people with this brain disorder can display a wide range of symptoms and disabilities, many are incapable of understanding other people's thoughts, feelings, and needs. Often, their language and intelligence do not fully develop. This makes communication and social relationships difficult. Many people with engage in repetitive activities, like rocking or banging their heads, or rigidly following fam ....