Why the processing of repeated targets are better than that of no repetition: evidence from easy-to-difficult and difficult-to-easy switching situations

Table 2 Regional brain activity changes in different comparisons

x,y,z^a	Hemisphere	Peak intensity	Number of voxels^b	Region^c	Brodmann’s area
Incon_Con > Con_Con (Lower activated)
24 -63 39	R	3.817	34	Precuneus	7, 31
Con_Incon > Incon-Incon (Higher activated)
-63 -18 -6	L	7.604	47	Superior_Temporal_Gyrus	39
-3 -30 36	L	4.112	39	Precuneus, Angular gyrus	7,31
-39 51 6	L	5.367	170	Middle_Frontal_Gyrus	46
-33 18 30	L	4.992	89	Middle_Frontal_Gyrus	9
33 39 39	R	4.241	53	Middle_Frontal_Gyrus	9
33 -9 39	R	3.992	35	Posterior_Cingulate_Cortex	31
15 48 -15	R	3.936	48	Superior_Frontal_Gyrus	11
48 33 18	R	5.270	212	Inferior_Frontal_Gyrus	8,9,46

^aPeak MNI Coordinates.
^bWe first identified clusters of contiguously significant voxels at an uncorrected threshold p < 0.01, as also used for display purposes in the figures. We then tested these clusters for cluster-level FWE correction p < 0.01 and the AlphaSim estimation indicated that clusters with 30 contiguous voxels would achieve an effective FWE threshold p < 0.01. Voxel size = 3*3*3.
^cThe brain regions were referenced to the software Xjview (http://www.alivelearn.net/xjview8) and double checked with atlas.

ISSN: 1744-9081