Table 2.

Neuropsychological results: group means (ALS patients and control subjects) and difference scores (z scores)

TestControl groupALS groupIntergroup difference, time 1Intergroup difference, time 2
Time 1Time 2Intragroup (control) difference scoresTime 1Time 2Intragroup (ALS) difference scores
Difference scores greater than 1.0 SD indicated in boldface.
* Scores for GDS and NPI are raw test scores.
WCST = Wisconsin Card Sorting Test; WCSTpr = WCST perserverative responses; WCSTterr = WCST total errors; SWords = Thurstone Written Word Fluency, number of words; ConTrig = Consonant Trigrams Test; RAVLT = Rey Auditory Verbal Learning Test; RAVLTtot = RAVLT total across five trials; RAVLTdel = RAVLT delayed recall; RMT = Recognition Memory Test; RMTWords = RMT total number of words recalled; RMTFaces = RMT total number of faces recalled; MFVPT = Motor Free Visual Perception Test, total correct; BlockDes = Block Design Test; GDS = Geriatric Depression Scale; NPI = Neuropsychiatric Inventory.
WCSTpr−0.02+0.08+0.10−0.32−0.23+0.09+0.30+0.31
WCSTterr−0.24+0.30+0.54−0.37−0.07+0.30+0.13+0.37
CFL+0.22+0.95+0.73−0.01−0.32−0.31+0.23+1.27
SWords−0.70−0.40+0.30−1.28−1.42−0.14+0.58+1.02
ConTrig−0.12+0.38+0.50−0.42−0.40+0.02+0.30+0.78
RAVLTtot+0.80+0.48−0.32+0.21−0.36−0.57+0.59+0.84
RAVLTdel+0.32+0.05−0.27−0.22−0.24−0.02+0.54+0.29
RMTWords+0.48−0.18−0.66+0.71+0.41−0.30−0.23−0.59
RMTFaces−0.50+1.02+1.52−0.92−0.71+0.21+0.42+1.73
MFVPT+1.44+1.85+0.41+0.36+0.83+0.47+1.08+1.02
BlockDes+0.39+1.00+0.61−0.04+0.09+0.13+0.43+0.91
GDS*6.48.06.96.0
NPI*4.213.7