Clinical Features of Late-onset Semantic Dementia

Background: Semantic dementia (SD) is characterized by progressive semantic anomia extending to a multimodal loss of semantic knowledge. Although often considered an early-onset dementia, SD also occurs in later life, when it may be misdiagnosed as Alzheimer disease (AD). Objective: To evaluate late-onset SD in comparison to early-onset SD and to AD. Methods: We identified 74 individuals with SD and then compared those with late-onset SD (≥65 years of age) to those with early-onset SD (
Source: Cognitive and Behavioral Neurology - Category: Neurology Tags: Original Studies Source Type: research