Table 2. Summary of neuropsychological findings at presentation.

Case	III.2	III.4	III.9	III.11
Duration since symptom onset (years)	2	2	1	1
General intellectual function
Verbal IQ	84	61***	72**	85
Performance IQ	72**	<54***	60***	108
Memory
Verbal memorya	32/50**	fail	21/25	38/50
Visual memoryb	29/50***	fail	14/25***	44/50
Language
Namingc	16/30	13/30*	8/30***	3/30***
Word comprehensiond	36/50	NT	NT	33/50
Word repetition	normal	normal	impaired	impaired
Other cognitive domains
Spellinge	14/30	NT	2/30***	17/30
Calculationf	1/24***	0/24***	0/24***	14/24
Visuospatial/perceptual skillsg	<5th percentile	25-50th percentile	<5th percentile	75-90th percentile
Limb praxis	mild impairment	severe impairment	severe impairment	mild impairment
Executive functionh, i	fail	fail	fail	normal

^aRecognition Memory Test for Words (out of 50) (35) [short version - out of 25]

^bRecognition Memory Test for Faces (out of 50) (35) [short version - out of 25]

^cGraded Naming Test (14)

^dWarrington Synonyms Test (out of 50) (36)

^eGraded Difficulty Spelling Test (37)

^fGraded Difficulty Arithmetic Test (out of 24) (38)

^gVisual Object and Spatial Perception (VOSP) battery (39)

^hWeigl test (40)

ⁱModified card sorting test (41)

^***<1^st percentile

^**=1^st to < 5^th percentile

^*=5^th to <10^th percentile; no stars ≥10^th percentile

NT = not tested