Table 3.
Diagnostic, age and frontal asymmetry group differences on the diagnostic measures
| HFA group N = 35 | Comparison group N = 28 | |||||||
|---|---|---|---|---|---|---|---|---|
| LFA (n = 18) | RFA (n = 17) | LFA (n = 13) | RFA (n = 15) | |||||
| Lower IQ (n = 11) | Higher IQ (n = 7) | Lower IQ (n = 7) | Higher IQ (n = 10) | Lower IQ (n = 8) | Higher IQ (n = 5) | Lower IQ (n = 8) | Higher IQ (n = 7) | |
| Lateral frontal asymmetry1 | ||||||||
| ASSQ | 25.09a (8.59) | 27.00a (7.14) | 25.57a (7.73) | 31.20a (8.04) | 5.37b (5.01) | 7.80b (6.26) | 5.37b (4.10) | 4.00b (2.89) |
| SCQ social interaction3 | 4.45a (1.21) | 6.43b (3.26) | 8.14b (3.54) | 6.00ab (3.23) | 1.12c (0.99) | 1.60c (0.55) | 0.62c (0.74) | 1.14c (1.07) |
| SCQ communication2 | 6.36a (1.63) | 6.14a (1.07) | 5.14a (2.54) | 6.60a (2.06) | 0.87b (0.64) | 2.80c (1.79) | 1.75c (1.16) | 1.86bc (1.57) |
| SCQ repetitive behavior3 | 3.90a (2.02) | 3.57ac (2.22) | 3.57a (1.51) | 4.80a (1.93) | 0.37b (0.74) | 1.80bc (2.49) | 0.38b (0.74) | 0.43b (0.79) |
| Mid-frontal asymmetry1 | ||||||||
| ASSQ | 26.10a (8.10) | 27.55a (7.07) | 24.25a (8.46) | 31.62a (8.36) | 4.75b (4.65) | 6.00b (6.04) | 6.00b (4.41) | 5.25b (4.35) |
| SCQ social interaction | 5.20a (2.20) | 6.56a (2.83) | 6.75a (3.77) | 5.75a (6.25) | 1.25b (0.89) | 1.00b (1.00) | 0.50b (0.76) | 1.57b (0.79) |
| SCQ social communication | 6.20a (1.99) | 6.22a (0.97) | 5.50a (2.20) | 6.62a (2.33) | 0.75b (0.71) | 2.60b (1.81) | 1.87b (0.99) | 2.00b (1.63) |
| SCQ repetitive behaviors2 | 4.70a (1.64) | 3.56abd (1.94) | 2.62b (1.30) | 5.12a (2.03) | 0.37c (0.74) | 1.60cd (2.61) | 0.37c (0.72) | 0.57c (0.79) |
Means within a row with different subscripts differ significantly
SCQ social communication questionnaire, ASSQ autism spectrum screening questionnaire
1Significant multivariate diagnostic by frontal by IQ group effect, p < .001
2Significant univariate diagnostic by frontal by IQ group effect, p < .05
3Trend univariate diagnostic by frontal by IQ group effect, p < .10