Table 2.

Cortical regions showing significant activation in the exploratory analyses of the registered group data for the contrasts of as/AS versus ps/AS, as/PS versus ps/PS, and current AS versus PS

Contrast	Time point (s)	Activated regions	Talairach coordinates			t value	p value
			x	y	z
as/AS vs ps/AS	0	Right insula	35	−7	−6	−7.06	7.64E-07
		Left orbitofrontal cortex	−7	25	−21	−6.00	7.24E-06
		Right orbitofrontal cortex	5	28	−19	−6.00	7.87E-06
	2	Left posterior cingulate sulcus	−15	−39	49	−6.05	6.49E-06
		Left FEF	−25	1	48	−6.05	6.55E-06
		Left superior parietal gyrus	−22	−45	60	−5.46	2.38E-05
		Right SEF	8	2	51	−4.62	1.64E-04
	4	Right FEF	22	2	52	−6.77	1.38E-06
		Left PEF	−26	−51	47	−6.57	2.1E-06
		Left precuneus	−10	−46	49	−5.66	1.53E-05
		Right superior parietal gyrus	24	−52	59	−4.22	4.26E-04
as/PS vs ps/PS	0	Right insula	31	23	−13	−4.60	1.72E-04
	2	Right orbitofrontal cortex	14	32	−18	−7.04	7.85E-07
		Right middle temporal gyrus	61	−29	−11	−6.63	1.85E-06
		Left orbitofrontal cortex	−8	29	−19	−6.06	6.32E-06
AS vs PS	0	Right posterior cingulate cortex	23	−23	50	−5.26	9.23E-05
		Right central sulcus	13	−20	46	−4.87	3.78E-05
	4	Right SEF	10	10	45	9.07	1.58E-08
		Left FEF	−28	2	49	8.49	4.63E-08
		Left SEF	−11	14	36	8.33	6.17E-08
		Right FEF	30	−2	41	8.09	9.89E-08
		Right parietal transverse sulcus	22	−56	52	7.83	1.63E-07
		Left superior parietal gyrus	−12	−63	53	6.99	8.71E-07
		Right insula	30	28	5	6.67	1.71E-06
		Right PEF	33	−40	37	6.44	2.81E-06
		Left dorsal anterior cingulate cortex	−3	22	22	6.28	3.93E-06
		Left insula	−27	29	2	6.20	4.66E-06
		Right subcentral gyrus	43	−16	19	−5.58	1.85E-05
		Left PEF	−33	−34	38	5.40	2.74E-05
		Right dorsal anterior cingulate cortex	7	15	31	5.29	3.56E-05
		Left inferior frontal gyrus	−37	23	8	5.20	4.33E-05
		Left superior occipital sulcus	−25	−84	19	5.12	5.25E-05
		Left angular gyrus	−39	−65	42	−4.73	1.27E-04
		Left precuneus	−4	−56	15	−4.47	2.34E-04

Talairach coordinates derived from the surface maps, t test values, and p values (in exponents, base 10) are given for the vertex with maximal activation across the 0, 2, and 4 s time points. Regions in bold type are those for which the hemodynamic responses are plotted in Figure 3. Talairach coordinates are approximate and may not always correspond to the surface localizations.