Communication disorder is a wide range of disorder, developing from a young age to adulthood with symptoms such as hearing loss, speech and language problems, like stuttering. In the last decade, scientists and researchers have tried to find the cause of the problems. Back then, before the “Decade of the Brain”, a campaign made in 1990 by George W. Bush so that it can “enhance public awareness of the benefits to be derived from brain research”, though genes were related, it wasn’t as important as it is now. Scientists and researchers then were confounded as they couldn’t find a reason as to why this particular disorder occurred, especially and mainly in young children. They knew that some disorders such as deafness was heritable, but the ideas of genes were so small, so irrelevant and so alien that they didn’t link it until a decade later.