Case Report

Intermittent Alien Hand Syndrome and Callosal Apraxia in Multiple Sclerosis: Implications for Interhemispheric Communication

Table 1

DA performance on neuropsychological testing (the star indicates scores below cutoffs).

Cognitive functionsNPSYCH testsRaw score
(corrected)
RangeCutoff
scores

LanguageNaming300–30
Fluency by phoneme33≤17.35
Fluency by category 42 ≤24

Short-term and working memoryVisual span
 -Corsi test4 (3.50)*0–10≤3.75
Digit span
 (i) Forward6 (5.75)0–10≤3.75
 (ii) Backward40–10

Long-term memory
 (i) Verbal LTMList of words
 (i) Immediate recall49 (46.3)0–80≤25.14
 (ii) Delayed recall 12 (11.2)0–16≤3.44
 (ii) Visual LTMStory recall9.7 (8.95)0–16≤4.50
Delayed recall of Rey’s figure13 (13.25)0–36≤9.46

Attention and information processingTrail making test (TMT)
 (i) Part A 93′′ (83)≥94
 (ii) Part B148′′ (111)≥282
Symbol digit modalities test
 -Oral form21*0–100

Executive functionsRaven’s CPM33 (30.8)0–36≤18.96
London tower280–36
Modified card sorting test
 (i) Categories 60–6≤2
 (ii) Perseverative errors1 (1)≥6.41
Cognitive estimates
 (i) Errors19*0–42≥18
 (ii) Bizarre errors4*0–21≥4

PraxisFigure copying9 (9.1)0–12≤7.18
Rey-Osterrieth complex figure31 (30.25)0–36≤28.87
Clock test90–10≤7

Visual processingMinimal feature view task250–25