Figure 1.
BOLD responses on inflated surface of the left hemisphere of the Colin brain (Van Essen et al., 2001). The Front plane indicates the dorsolateral view of left hemisphere; the back plane gives the medialview. Color scale indicates z-scores. Cue period is as follows: A, Group-average ANOVA F-map, transformed to z-map and multiple-comparison corrected (F(z) mc) during covert attention. B, Preparation of saccadic eye movement. C, Preparation of pointing movement with right hand. Graphics indicate group-average BOLD time courses averaged over cue direction during attention (blue), saccade (green), and pointing (red). The y-axis indicates the percentage BOLD signal change, whereas the x-axis indicates time (in seconds). D, Differential activation during attention versus saccade preparation. E, Differential activation during saccade versus pointing preparation. Target period is as follows: F, Group-average BOLD time courses, averaged over cue and target direction, extracted over the entire trial (the black arrow shows the time of cue onset, and the black arrow with mark shows the time of target onset, indicating the temporal window of stimulus presentation) in FEF, aIPS, PCu, and IPL/aIPS. G, Group-average F(z) mc map during attention plus target detection. H, Saccade plus target detection. I, Pointing plus target detection. L, Left; Calc.S, calcarine sulcus. The asterisk indicates that there were no active voxels in the left FEF after multiple-comparison correction. The FEF response during the attention task can be seen in Figure 3B. Data sets are available at http://pulvinar.wustl.edu:8081/sums/archivelist.do?archive_id=315115.