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Table 1 Demographics and initial linguistic assessment

From: Progression of logopenic variant primary progressive aphasia to apraxia and semantic memory deficits

 

Case 1

Case 2

Case 3

Age at onset, years/gender

56/F

53/M

51/M

Education (years)

16

12

12

Years of follow-up

9

7

10

Clinical Dementia Rating total (0–3) for the first 2 years

0.5

0.5

0.5

Forward digit span

3

2

3

Backward digit span

None

None

2

Non-word repetition

Word-length effect

Word-length effect

None

Apraxia of speech

Not found

Not found

Not found

Dysarthria

Not found

Not found

Not found

Phonological paraphasias

Occasional

Frequent

Frequent

Confrontation naming in SLTA, % correct

65

40

35

Word repetition in SLTA, % correct

100

80 (due to paraphasia)

80 (due to paraphasia)

Sentence repetition in SLTA, % correct

20

20

0

Auditory single-word comprehension in SLTA, % correct

100

100

100

Auditory complex sentence comprehension commands in SLTA, % correct

30

0

20

  1. SLTA: Standard Language Test of Aphasia.