Table 2 Eye tracking key variables mean (SD)

Gap Baseline RT (log)

5.75 (.12)

5.67 (.12)

5.75 (.16)

5.78 (.2)

5.76 (.14)

Gap Gap RT (log)

5.61 (.12)

5.5 (.09)

5.57 (.1)

5.58 (.14)

5.59 (.17)

Gap Overlap RT (log)

6.09 (.21)

6.02 (.18)

6.09 (.25)

6.04 (.24)

6.16 (.28)

Popout Face Proportion Looking

.48 (.16)

.5 (.18)

.48 (.16)

.49 (.19)

.44 (.15)

Popout Looking to Face first proportion

.52 (.24)

.42 (.2)

.39 (.23)

.39 (.19)

.4 (.24)

Accuracy Degree

2.09 (.54)

1.83 (.55)

2.13 (1)

2.16 (.6)

2.25 (.66)

Precision Degree

2.41 (.57)

1.59 (.33)

2.43 (1)

2.45 (.7)

2.57 (.71)

10 months

LL

NF1

ASD

ADHD

ASD + ADHD

Gap Baseline RT (log)

5.71 (.11)

5.68 (.11)

5.73 (.15)

5.69 (.14)

5.73 (.14)

Gap Gap RT (log)

5.47 (.08)

5.44 (.09)

5.46 (.11)

5.45 (.09)

5.48 (.09)

Gap Overlap RT (log)

5.87 (.16)

5.91 (.19)

5.93 (.22)

5.92 (.21)

5.98 (.14)

Popout Proportion Looking

.45 (.13)

.49 (.11)

.5 (.16)

.47 (.17)

.39 (.13)

Popout Looking to Face first proportion

.59 (.23)

.55 (.3)

.59 (.24)

.56 (.25)

.47 (.26)

Accuracy Degree

1.59 (.41)

1.68 (.57)

1.75 (.54)

1.89 (.42)

1.96 (.75)

Precision Degree

1.89 (.46)

1.53 (.4)

2.04 (.59)

2.2 (.44)

2.27 (.85)

14 months

LL

NF1

ASD

ADHD

ASD + ADHD

Gap Baseline RT (log)

5.65 (.11)

5.64 (.12)

5.65 (.13)

5.61 (.15)

5.65 (.18)

Gap Gap RT. (log)

5.42 (.08)

5.39 (.09)

5.41 (.12)

5.38 (.11)

5.42 (.16)

Gap Overlap RT (log)

5.85 (.16)

5.84 (.17)

5.84 (.18)

5.85 (.27)

5.8 (.22)

Popout Proportion Looking

.32 (.13)

.46 (.17)

.41 (.13)

.4 (.19)

.38 (.09)

Popout Looking to Face first proportion

.51 (.26)

.64 (.21)

.62 (.22)

.5 (.25)

.57 (.22)

Accuracy Degree

1.61 (.46)

1.5 (.28)

1.73 (.47)

1.89 (.53)

1.91 (1.01)

Precision Degree

1.9 (.5)

1.47 (.31)

2.02 (.5)

2.2 (.52)

2.22 (1.24)