Article Figures & Data
Figures
- Fig. 1.
Sequence of visual stimuli in the active task. At the beginning of each block of trials, a written instruction (either gaze-following or color-matching) was presented on the screen for 5 s. Each trial started with a baseline fixation picture with direct gaze (lasting for 5 s), immediately followed by one of five possible portraits (target portraits), present for 4 s, with the demonstrator’s gaze directed at a specific target and exhibiting a distinct iris color. Subjects were not allowed to make an eye movement until the disappearance of the fixation target. Afterward, alternately 10 fixations (each 5-s duration) and 10 trial pictures (each 4-s duration) were presented. The demonstrator has agreed for her portrait to be published.
- Fig. 2.
Illustration of the first experiment’s stimulus. The eyes of the person are directed to the dark-blue target (gaze cue), but the person’s iris color corresponds to the light-brown target (color cue). According to the introduced condition at the beginning of the block, the subject would have to make a saccade toward the dark-blue target (gaze-following condition) or toward the light-brown target (color-matching condition). The demonstrator has agreed for her portrait to be published.
- Fig. 3.
Behavioral data for gaze-following (dark gray) and color-matching (light gray) showing no significant difference in either mean accuracy or mean reaction time (time between the go signal and the start of the eye movement (n = 20 sessions, 160 correct trials). Error bars represent SE.
- Fig. 4.
MRI group data showing the BOLD response for the contrast gaze-following versus baseline fixation.
- Fig. 5.
MRI group data showing the BOLD response for the contrast color-matching versus baseline fixation.
- Fig. 6.
MRI group data showing the BOLD response for the contrast gaze-following versus color-matching. Activation maximum in right hemisphere in Talaraich coordinates (50, –64, 2).
- Fig. 7.
Spatial organization of face-selective areas and the gaze-following patch.
- Fig. 8.
Selectivity of the individually defined STS-FA to gaze-following in contrast to the selectivity of the GFP to static face perception. Error bars indicate 90% confidence intervals. In the right STS-FA (Talaraich coordinates of the peak: 51, –42, 12), the mean contrast value for gaze-following is not significantly different from zero, in accordance with the assumption of a lack of gaze-following selectivity (t-test, p = 0.49). On the other hand, the contrast value for face perception in the right GFP (Talaraich coordinates of the peak: 50, –64, 2) is not significantly different from zero, meaning no face-selectivity (t-test, p = 0.20).
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