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Table 1. 
Eye Movement Behavior in the Task and Properties of the Target Object
  ConsistentInconsistent
Mean ± SDMean ± SD
Eye movement behavior Ordinal fixation number of first target fixation 6.7 ± 6.0 5.2 ± 5.3 
Fixation duration (t − 2), in msec 220.7 ± 105 212.9 ± 95 
Fixation duration (t − 1), in msec 207.6 ± 96 197 ± 91 
Fixation duration (t), in msec 261.6 ± 146 263.3 ± 136 
Gaze duration on target, in msec 408.5 ± 367.1 519.1 ± 373.6 
Number of refixations on target 1.7 ± 2 2.2 ± 2.1 
Duration of refixations on target, in msec 238.9 ± 121.8 250.2 ± 135.7 
Fixation duration (t + 1), in msec 245.3 ± 148 243.7 ± 146 
Incoming saccade amplitude to t − 1 (°) 6.1 ± 5.2 6 ± 4.8 
Incoming saccade amplitude to t (°) 8.5 ± 5.2 8.3 ± 4.8 
Incoming saccade amplitude to t + 1 (°) 9.5 ± 5.9 10.2 ± 5.8 
Distance of fixation t − 1 from the closest edge of target (°) 6.8 ± 5.8 6.3 ± 5.3 
Number of fixations after first encountering target object until end of study phase 7.3 ± 2.1 7.3 ± 1.7 
Duration of fixations after first encountering target object (until end of study phase) 254.6 ± 120.4 251.7 ± 118.8 
Target object properties Distance of target object center from screen center (°) 12.1 ± 2.8 11.7 ± 3 
Mean visual saliency (AWS model) 0.36 ± 0.16 0.37 ± 0.16 
Width (°) 6.1 ± 2 6.1 ± 2.1 
Height (°) 5.1 ± 1.8 5.4 ± 2.2 
Area (degrees of visual angle squared) 16.1 ± 8.7 17.3 ± 11.4 
  ConsistentInconsistent
Mean ± SDMean ± SD
Eye movement behavior Ordinal fixation number of first target fixation 6.7 ± 6.0 5.2 ± 5.3 
Fixation duration (t − 2), in msec 220.7 ± 105 212.9 ± 95 
Fixation duration (t − 1), in msec 207.6 ± 96 197 ± 91 
Fixation duration (t), in msec 261.6 ± 146 263.3 ± 136 
Gaze duration on target, in msec 408.5 ± 367.1 519.1 ± 373.6 
Number of refixations on target 1.7 ± 2 2.2 ± 2.1 
Duration of refixations on target, in msec 238.9 ± 121.8 250.2 ± 135.7 
Fixation duration (t + 1), in msec 245.3 ± 148 243.7 ± 146 
Incoming saccade amplitude to t − 1 (°) 6.1 ± 5.2 6 ± 4.8 
Incoming saccade amplitude to t (°) 8.5 ± 5.2 8.3 ± 4.8 
Incoming saccade amplitude to t + 1 (°) 9.5 ± 5.9 10.2 ± 5.8 
Distance of fixation t − 1 from the closest edge of target (°) 6.8 ± 5.8 6.3 ± 5.3 
Number of fixations after first encountering target object until end of study phase 7.3 ± 2.1 7.3 ± 1.7 
Duration of fixations after first encountering target object (until end of study phase) 254.6 ± 120.4 251.7 ± 118.8 
Target object properties Distance of target object center from screen center (°) 12.1 ± 2.8 11.7 ± 3 
Mean visual saliency (AWS model) 0.36 ± 0.16 0.37 ± 0.16 
Width (°) 6.1 ± 2 6.1 ± 2.1 
Height (°) 5.1 ± 1.8 5.4 ± 2.2 
Area (degrees of visual angle squared) 16.1 ± 8.7 17.3 ± 11.4 

Target object size and distance to target are based on the bounding box around the object. The fixation t + 1 is the first fixation after leaving the bounding box of the target object.

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