| ACE-R | Addenbrooke’s Cognitive Examination revised |
| AD | Alzheimer’s disease |
| AQ | Aphasia Quotient |
| CBD | corticobasal degeneration |
| CBS | corticobasal syndrome |
| CBS-AD | corticobasal syndrome with probable Alzheimer’s disease as underlying pathology |
| CBS-non-AD | corticobasal syndrome not related to Alzheimer’s disease as underlying pathology |
| CDR | Clinical Dementia Rating scale |
| CG | control group |
| CIU | correct information unit |
| FAQ | Functional Activities Questionnaire |
| FDG | [18F]fluorodeoxyglucose |
| H&Y | Hoehn and Yahr scale |
| lvPPA | logopenic variant of primary progressive aphasia |
| MRI | magnetic resonance image |
| nfvPPA | non-fluent variant of primary progressive aphasia |
| NPI | Neuropsychiatric Inventory |
| PET | positron emission tomography |
| PiB-PET | [11C]Pittsburgh Compound-B positron emission tomography (PIB-PET) |
| PPA | primary progressive aphasia |
| PSP | progressive supranuclear palsy |
| SD | standard deviation |
| svPPA | semantic variant of primary progressive aphasia |
| WAB-R | Western Aphasia Battery revised |
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