Cat. II · Screening, Assessment, Eval & Dx4 min read
Cognitive CommunicationReceptive & Expressive Language
Dementia & Right Hemisphere Disorders
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Dementia Types
| Type | Key Features | SLP-Relevant |
|---|---|---|
| Alzheimer's Disease | Most common (~60 to 70%); gradual onset; memory loss first; word-finding → empty speech → echolalia → mutism | Early: word-finding, topic maintenance; Late: comprehension, all communication |
| Vascular Dementia | 2nd most common; stepwise decline; related to strokes/CVD | Variable; depends on location of vascular events |
| Lewy Body Dementia | Visual hallucinations; fluctuating cognition; Parkinsonism | Cognitive-communication fluctuations; dysarthria may occur |
| Frontotemporal Dementia (FTD) | Personality/behavior changes (behavioral variant); OR progressive language decline (semantic or nonfluent/agrammatic PPA) | SLP critical for PPA subtypes |
| Primary Progressive Aphasia (PPA) | Gradual, language-led decline; 3 variants (see below). Semantic and nonfluent/agrammatic variants usually have FTD-spectrum (FTLD) pathology; the logopenic variant most often has Alzheimer's pathology | Central SLP role |
The rest of this outline 6
- Primary Progressive Aphasia (PPA) Variants
- Alzheimer's Disease: Language Decline by Stage
- Treatment for Dementia
- Right Hemisphere Disorder (RHD)
- RHD Treatment
- Sources to Know
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