ABSTRACT
Developments in imaging in the 1970s began to confirm that areas of the brain outside the classic left peri-Sylvian region could produce impairments in language processing. Classic aphasic symptoms could arise following subcortical damage and damage to the right hemisphere could produce other, apparently non-aphasic impairments in language use. Additionally, researchers became aware that various forms of language impairments could accompany progressive neurological damage. Consequently, a broader appreciation of the involvement of the whole brain in language processes began to emerge. In this, the final chapter, we present an overview of the main thrusts of these developments in the latter half of the twentieth century. In so doing it becomes clear that aphasiology has expanded beyond the recognition of eighteenth and nineteenth century physicians, and even in the past 100 years. But, despite our sophisticated methods of investigation, there is still much to know about the nature of language and its breakdown following damage to the brain.
