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Table 3 Peak look duration (ms) to each AOI type, by risk and outcome group

From: Developmental change in look durations predicts later effortful control in toddlers at familial risk for ASD

   Low risk High risk
    Combineda HR-no ASD HR-ASD
Face stimuli 9 months 1916.29 (949.37) 1931.74 (1238.49) 1976.76 (1266.72) 1845.04 (1161.71)
  270–3909 352–7516 352–7516 395–4051
N 23 94 76 16
15 months 1132.13 (810.70) 1771.72 (893.52) 1750.02 (878.59) 1916.50 (1082.76)
  310–3950 448–5404 448–5404 760–4200
N 19 97 80 14
Scrambled face stimuli 9 months 868.35 (459.49) 758.59 (343.26) 759.18 (289.66) 794.80 (535.53)
  260–2664 268–2736 268–1876 400–2736
N 22 93 74 17
15 months 713.62 (334.68) 643.82 (289.75) 632.15 (298.15) 676.51 (229.86)
  380–1632 200–2572 284–2572 200–1152
N 20 94 78 13
Difference score  195.70 (657.01)  71.68 (352.93)  91.47 (364.37) 0.21 (309.93)
  − 2097–860 − 1161–1068 − 1161–1068 − 555–517
N 16 75 60 13
Non-social stimuli 9 months 1319.12 (528.86) 1250.52 (462.82) 1229.39 (460.22) 1320.63 (509.15)
  769–3018 280–2989 280–2989 651–2824
N 23 99 80 17
15 months 1292.07 (664.91) 1367.62 (628.25) 1367.07 (675.84) 1387.40 (268.22)
  385–2949 420–3987 420–3987 894–1870
N 23 105 87 15
Difference score  91.70 (798.14) 72.27 (687.81) 87.96 (712.65) 49.76 (608.69)
  − 1243–1573 − 1930–2697 − 1405–2697 − 1930–560
N 20 90 73 15
  1. Data represent the mean duration (ms) across all trials for each participant (minimum of three trials). Standard deviations are given in parenthesis, and minimum and maximum values in italics. Difference score calculated by subtracting 9-month observation from 15-month observation
  2. aIncludes three HR infants for whom experimental data was collected but were not allocated outcome group status