Fig 1.
Activation pattern of a representative subject (S1) for the face localizer task (contrast: “2*faces > (objects + scrambled images)”; p = 0.05, corrected (FWE) for multiple comparisons, transversal section at z = -14 mm).
Table 1.
Activation maxima (reported in MNI coordinates) in regions of the core system of face perception for the face localizer task (contrast “2*faces > (objects + scrambled images)”, p = 0.001, uncorrected for multiple comparisons; * p = 0.1) for the group analysis (GA) and the individual subject analysis (S1-S9).
Fig 2.
Group activation pattern for the illusory face detection task (contrast “face > no face”, p = 0.001 uncorrected.
BOLD activation was found in prefrontal and parietal regions, but not in the core system of face perception (e.g., OFA and FFA).
Fig 3.
Representative BOLD activation pattern during the illusory face detection task for two subjects (contrast: “face > no face”).
Subject S5 (top) shows significant BOLD activity in the core-system of face perception, as assessed either by a whole brain analysis (left; p = 0.001, uncorrected) or a ROI analysis (right; p = 0.05, corrected (FWE) for multiple comparisons). In contrast, subject S2 (bottom) does not show BOLD activity in the ROIs of the core-system of face perception, not even at the liberal threshold of p = 0.05, uncorrected. Left: whole brain analysis, right: ROI analysis.
Fig 4.
Difference of mean percent signal change (psc) over the respective ROIs of the core system of face perception (right OFA, right FFA, left OFA, left FFA) between the conditions “face” and “no face” for individual subjects.
Subjects with significant BOLD activity in the ROI analysis (1, 5, 6, 7) are colored in dark blue, subjects without significant BOLD activity in the ROI analysis (2, 3, 4, 8, 9) are colored in light blue. Psc was calculated using MarsBaR (marsbar.sourceforge.net/).