Case Control Study
Copyright ©The Author(s) 2021.
World J Psychiatr. Mar 19, 2021; 11(3): 73-86
Published online Mar 19, 2021. doi: 10.5498/wjp.v11.i3.73
Table 2 Attentional bias-related eye-movement data
Item
Image classification
IAD group, n = 30
HC group, n = 30
t
P value
First-fixation direction bias as %
Disease–threatDisease49.90 ± 9.9349.94 ± 8.960.3410.734
Threat50.10 ± 9.9350.94 ± 8.96-0.3410.734
Disease–positiveDisease34.90 ± 12.2332.92 ± 9.770.6930.491
Positive65.10 ± 12.2367.08 ± 9.77-0.6930.491
Disease–neutralDisease45.00 ± 7.8150.21 ± 8.53-2.467a0.017
Neutral55.00 ± 7.8149.79 ± 8.532.467a0.017
First-fixation duration bias in ms
Disease–threatDisease281.20 ± 61.47246.40 ± 30.992.769b0.008
Threat296.86 ± 58.13266.37 ± 40.172.363a0.022
Disease–positiveDisease272.16 ± 61.83246.20 ± 35.41.9960.051
Positive259.41 ± 49.95238.71 ± 48.831.6230.110
Disease–neutralDisease280.48 ± 55.15252.81 ± 45.072.128a0.038
Neutral288.28 ± 59.08264.67 ± 47.271.7090.093
Overall gaze duration bias in ms
Disease–threatDisease44.90 ± 4.1344.51 ± 3.860.3880.700
Threat55.09 ± 4.1355.49 ± 3.85-0.3880.700
Disease–positiveDisease46.45 ± 5.344.35 ± 6.211.4070.165
Positive53.55 ± 5.355.65 ± 6.21-1.4070.165
Disease–neutralDisease47.18 ± 4.1346.97 ± 4.500.1850.854
Neutral52.82 ± 4.1253.03 ± 4.50-0.1850.854
Overall fixation frequency bias as %
Disease–threatDisease45.63 ± 3.2445.59 ± 3.830.0510.960
Threat54.37 ± 3.2454.41 ± 3.83-0.0510.960
Disease–positiveDisease46.93 ± 4.4344.67 ± 5.061.8410.071
Positive53.07 ± 4.4355.33 ± 5.06-1.8410.071
Disease–neutralDisease48.44 ± 3.7848.76 ± 3.50-0.3410.735
Neutral51.56 ± 3.7851.24 ± 3.500.3410.735