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. 2009 Sep 24;20(6):1274–1285. doi: 10.1093/cercor/bhp194

Table 2.

Encode and maintenance phase functional ROIs and summary of statistical analyses

Region X Y Z Vol. Task Phase Interaction Encode phase
 Maintenance phase
P P P P η2 Contrast P η2 Contrast
Frontal lobe
    [1] L inferior frontal gyrus (44,45) −48 5 20 3.02 0.0001 0.02 ns 0.0001 0.46 T = P > C 0.001 0.30 T = P > C
    [2] R anterior cingulate (32) 4 13 38 0.41 0.001 0.001 ns 0.001 0.35 T > P = C 0.05 0.18 T > P = C
    [3] Pre-SMA/SMA(6) −4 1 54 2.18 0.0001 0.0001 0.08* 0.0001 0.41 T > P = C 0.001. 0.32 T > P > C
    [4] R paracentral lobule (6) 11 −23 51 0.57 0.002 ns 0.006 ns 0.13 — 0.0001 0.38 T > P > C
    [5] L precentral gyrus (6) −47 −10 46 2.07 0.0001 ns ns 0.001 0.36 T > P = C 0.0001 0.47 T > P > C
Parietal lobe
    [6] L postcentral gyrus (3,40) −33 −34 54 0.49 0.006 0.01 0.004 ns 0.09 — 0.001 0.33 T > P > C
Temporal lobe
    [7] L superior temporal gyrus (13) −52 −39 18 1.64 0.0001 0.0001 ns 0.001 0.35 T > P = C 0.0001 0.45 T > P > C
Limbic system
    [8] L insula (13) −35 15 5 0.52 0.0001 ns 0.03 0.0001 0.43 T > P = C 0.001 0.33 T = P > C
Basal ganglia
    [9] R caudate, putamen 12 6 3 1.62 0.002 0.01 0.007 0.01 0.22 T > P = C 0.001 0.33 T = P > C
    [10] L caudate, putamen −15 9 1 1.54 0.0001 0.02 0.06* 0.001 0.33 T > P = C 0.001 0.35 T = P > C

Note: Significance levels for the Omnibus F tests are reported under the Task, Phase, and Interaction columns. Asterisks designate regions showing a trend for a significant omnibus F test of the interaction, but a significant quadratic interaction component (P = 0.004 for pre-SMA/SMA; P = 0.007 for left caudate/putamen), indicating that task-related effects were nonlinear (i.e., T > P = C) in the encode but not the maintenance phase (i.e., T > P > C). ns = nonsignificant. Significance levels for separate main effect tests of task for each phase are reported in the Encode Phase and Maintenance Phase columns. Numbers in brackets on the left refer to brain regions displayed in Figure 4. Numbers in parentheses after the region label refer to Brodmann areas defined by the Talairach and Tournoux (1988) atlas. Coordinates represent distance in mm from anterior commissure: x, right (+)/left (−); y, anterior (+)/posterior (−); and z, superior (+)/inferior (−). P values are the result of the repeated-measures ANOVAs. Vol. = volume; L = left; and R = right.