Table 1

Brain regions showing signal increase in contrasts “A minus B” and “B minus C”

ContrastCoordinates Significance level BA
XYZt valueP value
A minus B
 Lateral frontal cortex3618368.30.005 9
3810588.30.005 6
382407.70.056/44
4610247.20.0545/44
3624−67.20.0547/12*
−408386.70.05 9
 Medial frontal cortex0364010.30.001 8
618507.60.058/6
430587.50.056/8
048347.10.059/8
 Others48−24−69.90.00121
4−74408.20.01 7
60−52127.90.0122/39
60−22−147.20.0520/21
12−32467.00.057/31
−56−48426.70.0540
B minus C
 Lateral frontal cortex−4812206.80.0545/44
−4042146.70.0546
−382366.60.056/44
 Others−48−64−1010.20.00137/19
−10−70608.20.01 7
14−76187.00.0518
12−58626.80.05 7
−52−36426.70.0540/7
−28−78346.60.0519/39
  • Coordinates are listed in the Talairach space. BA is the Brodmann area near the coordinates and is approximate. This table lists only main activations above the threshold level of P < 0.05 (corrected, t > 6.6) obtained by masking with the t-map for the original WCST condition (P < 0.001, uncorrected) (see Behavioral Procedures for the original WCST condition). When plural significant peaks occurred within 12 mm of one another, the most significant peak location was kept.  

  • * , Area definition by Petrides and Pandya (35).