Acquired Language Deficits Associated with Aphasia and Related Disorders

Our concepts about aphasia have developed in the course of the last two centuries. In 1825, Gall proposed that separate organs existed in the cerebral cortex of human brains. Each of these organs was claimed to sub-serve a specific intellectual, moral, or spiritual faculty. This view of arguing language to be localized in the brain was greatly challenged during the first half of the nineteenth century, when scientific connections between aphasic symptoms and localizations of brain damage areas were made (Code, 2011). The later classic research reports by Broca (1865) and Wernicke (1874) who discussed two distinctive types of aphasia have shaped the way we understand and think about aphasia, with reference to two

major features related to language impairment-auditory comprehension and verbal expressive abilities.