Table 3. Foci of intervention-related difference in HGO change during response preparation.

The location, time window, duration, and voxel-wise extent of each cluster of intervention-related difference in response-locked HGO are shown in Table 3. Voxels surviving the spatiotemporal thresholding at p<.005, corresponding to those shown in Figure 3, were tabulated and their associated anatomic labels listed. The voxel location and single time window where the absolute maximal t-value was identified in between-group analyses are listed in the MNI column, with associated t- and p-values to the right. The two right-most columns display the maximum or minimum t-value, as appropriate, obtained from the within-group contrasts in a 1.5 cm³ region around the between-group voxel at either a significance level of p<.005 or p<.05.

Regions with Between-group clusters	Time Range, mseca	MNIb (mseca)	Max t/p	# voxel	AT t-value	CG t-value
Right and Left Anterior Middle Frontal Gyrus (BA46, 11, 10)	−725 to −475	55, 60, −10 (−700)	−4.57/.002	122	1.96c	5.00c
	−700 to −650	−40, 40, −30 (−675)	−2.94/.001	24	1.64d	2.51d
	−125 to end	−60, 55, 5 (0)	−5.33/.0001	113	−2.25d	3.39d
Right Parahippocampus, Cingulate (BA30)	−175 to −50	15, −45, 0 (−75)	−3.16/.0005	52	ns	2.11d
Left Posterior Temporal (BA37, 39)	−575 to −475	−70, −75, 20 (-500)	−5.89/.0004	76	ns	2.76d
Right Inferior Temporal (BA37)	−525 to −500	70, −60, −25 (−525)	−3.97/.0004	18	1.68d	4.01c

^aTime reported as the start of the relevant 25 msec window.

^bMNI coordinate reported where the absolute maximal t-value occurred in the cluster of active voxels.

^cWithin-group t-value is significant at p < .005.

^dWithin-group t-value is significant at p < .05.