Fig. 1.
Results from subject S1 on Part I. Theright hemisphere appears on the left for these and all brain images in this paper (except the resliced images labeled “Axial” in Fig. 2). The brain images at theleft show in color the voxels that produced a significantly higher MR signal intensity (based on smoothed data) during the epochs containing faces than during those containing objects (1a) and vice versa (1b) for 1 of the 12 slices scanned. These significance images (see color key at right for this and all figures in this paper) are overlaid on a T1-weighted anatomical image of the same slice. Most of the other 11 slices showed no voxels that reached significance at the p < 10−3 level or better in either direction of the comparison. In each image, an ROI is shown outlined in green, and the time course of raw percentage signal change over the 5 min 20 sec scan (based on unsmoothed data and averaged across the voxels in this ROI) is shown at the right. Epochs in which faces were presented are indicated by the vertical gray bars marked with anF; gray bars with an Oindicate epochs during which assorted objects were presented;white bars indicate fixation epochs.