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Table 2 Psychological tests and fMRI task performances

From: Visual search for feature conjunctions: an fMRI study comparing alcohol-related neurodevelopmental disorder (ARND) to ADHD

Parameter TD ( n= 21) ARND ( n= 22) ADHD ( n= 19) Significance a Post hoc tests b
Mean Std dev Mean Std dev Mean Std dev
Cognitive/inattention scores 49.0 5.2 71.9 11.6 65.7 11.3 F = 30.166, p < 0.001 TD < ARND, p < 0.001
TD < ADHD, p < 0.001
DSM-IV inattention scores 49.4 5.2 71.7 12.4 65.8 10.9 F = 27.809, p < 0.001 TD < ARND, p < 0.001
TD < ADHD, p < 0.001
Errors of omission (OM) 45.4 5.2 59.3 13.9 48.3 7.4 F = 11.723, p < 0.001 ARND > TD, p = 0.001
ARND > ADHD, p = 0.012
Disjunction accuracy (%) 94.6 6.0 86.0 11.4 93.4 5.4 F = 6.876, p = 0.002 ARND < TD, p = 0.011
ARND < ADHD, p = 0.030
Conjunction accuracy (%) 91.7 7.6 71.0 13.9 84.3 10.9 F = 18.867, p < 0.001 ARND < TD, p < 0.001
ARND < ADHD, p = 0.004
Conjunction errors (%) 5.2 6.8 18.3 10.6 9.2 8.9 F = 12.083, p < 0.001 ARND > TD, p < 0.001
ARND > ADHD, p = 0.013
Conjunction non-response (%) 3.1 3.0 10.9 11.3 8.0 8.9 F = 4.597, p = 0.014  
Disjunction response time (ms) 729.3 184.2 819.9 184.0 804.0 161.3 F = 1.569, p = 0.217  
Conjunction response time (ms) 799.0 178.1 883.0 186.0 854.5 187.3 F = 1.153, p = 0.323  
Disjunction response variability (ms) 135.8 77.9 220.3 116.0 250.0 130.7 F = 5.933, p = 0.004 ARND < ADHD, p = 0.021
ADHD > TD, p = 0.007
Conjunction response variability (ms) 172.0 67.1 248.1 87.3 251.5 144.8 F = 3.943, p = 0.025  
  1. aBonferroni-corrected p value for multiple comparisons = 0.005; bGames-Howell test.