Table 1 Demographics and initial linguistic and other neuropsychological assessment
| Â | Case 1 | Case 2 |
|---|---|---|
Age at onset, years/gender | 65/M | 50/M |
Education (years) | 12 | 16 |
Years of follow-up | 5 | 7 |
Clinical Dementia Rating score, total (0–3) for the first 2 years | 0.5 | 0.5 |
Sentence repetition | 5 phrases | 6 phrases |
Non-word repetition | intact | intact |
Forward digit span | 6 | 6 |
Backward digit span | 5 | 4 |
Confrontation naming in SLTA, % correct | 25 (anomia) | 65 (anomia) |
Auditory single-word comprehension in SLTA, % correct | 100 | 100 |
Auditory complex sentence commands comprehension in SLTA, % correct | 20 (auditory comprehension deficits) | 50 (auditory comprehension deficits) |
Reading comprehension of complex sentence commands in SLTA, % correct | 20 (reading comprehension deficits) | 20 (reading comprehension deficits) |
Written naming in Kanji in SLTA, % correct | 20 (agraphia) | 20 (agraphia) |
Dictation of short sentences, % correct | 0 (agraphia) | 0 (agraphia) |
Calculation in SLTA, % correct | 15 (acalculia) | 10 (acalculia) |
Ideational apraxia | present | present |
Visuoconstructional disorder | not found | present |
Visuoperceptual disorder | not found | not found |
Episodic memory deficits | found (2Â years postonset) | Found (4Â years postonset) |