Table 2.

Average Anatomical Location and Statistical Assessment of Activation for the individually-defined ROIs from Search trials in Experiment 1 (open contrast SPM).

Region	Hemi	Tal co-ords (x, y, z) ± SD	SS1+2 vs. Search (t)	SS3+4 vs. Search (t)	SS5+6 vs. Search (t)
IPS	Right	26 ± 4, −65 ± 6, 36 ± 5	2.81*	0.46	0.28
IPS	Left	−22 ± 4, −66 ± 6, 39 ± 6	3.45*	0.44	1.38
FEF	Right	34 ± 4, −7 ± 3, 51 ± 5	1.79	0.51	0.63
FEF	Left	−32 ± 5, −8 ± 3, 51 ± 5	2.50*	1.95	0.96
TPJ	Right	47 ± 5, −55 ± 5, 28 ± 5	4.52*	3.21*	1.65
TPJ	Left	−49 ± 2, −58 ± 5, 24 ± 4	5.33*	2.37*	1.73
IFJ	Right	40 ± 4, 6 ± 3, 27 ± 3	4.99*	1.67	1.06
IFJ	Left	−42 ± 3, 8 ± 3, 25 ± 2	5.92*	2.51*	1.12

The three rightmost columns list the t-values resulting from paired t-tests of the given Surprise Stimulus pairs versus Target Only activity. See Table 1 for abbreviation key. An asterisk (*) marks those comparisons that are significant at p < 0.05. These ROI coordinates closely matched those isolated from the Surprise trials (see Table 1).