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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.