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Table 2. 

Neuropsychological Test Performance


Controls
Patients
p
Mean
SD
Standard Score
Mean
SD
Standard Score
General intellectual ability 
NAART premorbid FSIQ    103.1 10.9   
VIQ 107.2 12.6  95.3 14.7  .01 
PIQ 106.6 12.6  103.4 13.2  .44 
FSIQ 107.9 12.4  99.2 13.6  .04 
 
Memory 
Digit span 18.9 4.4 SS = 11.7 16.6 4.3 SS = 9.8 .16 
HVLT 
 Trials 1–3 total (/36) 26.7 3.6 39%ile 23.6 4.6 22%ile .02 
 Delayed recall (/12) 9.7 2.0 37%ile 8.6 2.0 24%ile .08 
 Recognition hits–FA (/12) 11.9 0.3 48%ile 11.4 0.9 39%ile .02 
 
Psychomotor speed/executive abilities 
Digit symbol 75.3 12.1 SS = 11.2 58.9 16.0 SS = 8.0 <.01 
TMT-A 28.0 10.1 T = 50.5 37.8 12.0 T = 41.7 .01 
TMT-B 56.0 24.4 T = 58.6 68.6 25.1 T = 51.2 .12 
Phonemic fluency (FAS) 43.0 11.0 49%ile 35.9 10.6 33%ile .04 
Semantic fluency 21.0 5.5 49%ile 17.2 4.6 28%ile .02 
WCST 
 Categories 4.9 1.8  3.9 2.2  .12 
 % Perseverative errors 14.9 9.9 T = 46.1 17.6 9.4 T = 42.7 .37 

Controls
Patients
p
Mean
SD
Standard Score
Mean
SD
Standard Score
General intellectual ability 
NAART premorbid FSIQ    103.1 10.9   
VIQ 107.2 12.6  95.3 14.7  .01 
PIQ 106.6 12.6  103.4 13.2  .44 
FSIQ 107.9 12.4  99.2 13.6  .04 
 
Memory 
Digit span 18.9 4.4 SS = 11.7 16.6 4.3 SS = 9.8 .16 
HVLT 
 Trials 1–3 total (/36) 26.7 3.6 39%ile 23.6 4.6 22%ile .02 
 Delayed recall (/12) 9.7 2.0 37%ile 8.6 2.0 24%ile .08 
 Recognition hits–FA (/12) 11.9 0.3 48%ile 11.4 0.9 39%ile .02 
 
Psychomotor speed/executive abilities 
Digit symbol 75.3 12.1 SS = 11.2 58.9 16.0 SS = 8.0 <.01 
TMT-A 28.0 10.1 T = 50.5 37.8 12.0 T = 41.7 .01 
TMT-B 56.0 24.4 T = 58.6 68.6 25.1 T = 51.2 .12 
Phonemic fluency (FAS) 43.0 11.0 49%ile 35.9 10.6 33%ile .04 
Semantic fluency 21.0 5.5 49%ile 17.2 4.6 28%ile .02 
WCST 
 Categories 4.9 1.8  3.9 2.2  .12 
 % Perseverative errors 14.9 9.9 T = 46.1 17.6 9.4 T = 42.7 .37 

p values are for independent t tests with 38 degrees of freedom excepting Digit Span where there were 29 degrees of freedom (20 controls, 11 patients).

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