Table 2.
Group means and standard deviations for saccade latency and metrics.
| HFA | AD | TD | ||||
|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean | SD | Mean |
| Saccade metrics | ||||||
| First saccade gain | ||||||
| 5° | 0.97 | 0.10 | 0.96 | 0.10 | 0.95 | 0.08 |
| 10° | 0.87 | 0.08 | 0.90 | 0.06 | 0.91 | 0.04 |
| Variable error of first saccade gain | ||||||
| 5° | 0.17 | 0.11 | 0.15 | 0.08 | 0.12 | 0.04 |
| 10° | 0.14 | 0.09 | 0.13 | 0.04 | 0.10 | 0.01 |
| First saccade MAPE | ||||||
| 5° | 16.64* | 7.68 | 14.21 | 5.06 | 10.15 | 1.96 |
| 10° | 18.19*‡ | 7.26 | 12.94 | 5.00 | 11.17 | 3.60 |
| Final eye position gain | ||||||
| 5° | 1.04 | 0.13 | 1.02 | 0.06 | 1.00 | 0.05 |
| 10° | 0.95* | 0.06 | 1.00 | 0.03 | 1.01 | 0.04 |
| Variable error of final eye position gain | ||||||
| 5° | 0.19 | 0.15 | 0.14 | 0.09 | 0.10 | 0.06 |
| 10° | 0.17* | 0.13 | 0.09 | 0.05 | 0.09 | 0.04 |
| Final eye position MAPE | ||||||
| 5° | 13.07 | 8.27 | 9.37 | 4.25 | 8.33 | 3.41 |
| 10° | 11.56 | 7.86 | 6.13 | 2.29 | 6.70 | 2.03 |
| Latency | ||||||
| 5° | 173.16 | 21.65 | 181.35 | 30.97 | 170.38 | 17.65 |
| 10° | 175.16 | 18.59 | 173.56 | 25.34 | 176.44 | 21.97 |
| Latency/saccade gain | ||||||
| 5° | 208.37 | 30.7 | 198.36 | 28.8 | 200.39 | 30.76 |
| 10° | 183.76 | 28.58 | 191.21 | 34.03 | 184.82 | 28.22 |
HFA, high-functioning autism; AD, Asperger’s disorder; TD, typically developing; SD, standard deviation; MAPE, mean absolute percentage error.
*
HFA vs TD p < 0.05
‡
HFA vs AD p = 0.054.