Sarah Scott，a 19 years old girl who suffers from aphasia, a communication disorder.She find she can't speak any word after she get an unexpected ischemic stroke.
Aphasia is a kind of impairment of language ability which is caused by the advantage hemisphere damaged.As different area and extent of brain is damaged ,aphasia is divided into several types such as anomic aphasia、receptive aphasia and global aphasia and so on.
Lots of reason can make us get aphasia like cerebrovascular disease and craniocerebral trauma.
They make our advantage hemisphere broken and we can not find the word we want to say.
For example,if our brain is Wikipedia,the database is run but there is some trouble with Search tool .We can't find the information we need though we know the word.
Aphasia patients are suffering because they are still smart and have their own mind but they can't show it and talk with others.
Up to now ,scientists are still discovering effective way to cure it and improve patients' life.