Jacyna submits the medical texts to various critical readings and provides a review of the pictorial representation involved with the creation of aphasiology. He considers the scientific, experimental, and clinical aspects of this new field, together with the cultural, professional, and political dimensions of what would become the authoritative discourse about language and the brain. At the core of the study is an inquiry into the processes whereby men and women suffering from language loss were transformed into the "aphasic," an entity amenable to scientific scrutiny and capable of yielding insights about the fundamental workings of the brain. But what became of the subject’s human identity? Lost Words explores the links among language, humanity, and mental presence that make the aphasiological project one of continuing fascination.