Publisher's Synopsis
Changes in linguistic theory over the past two decades have influenced the way language is defined and evaluated. This book provides late-1990s information regarding the effects of ageing on linguistic communication. It teaches how to define the portion of diminished performance that may be because of ageing and the portion resulting from pathology.;The book contains research on the effects of healthy ageing on cognition and communiation. It shows the effects of dementia aetiology on the nature of communication impairment and the nature of communicative dissolution over time.
