Table 6.

Group activations for the decrease > increase elaboration contrast. Regions that were present in the Condition X Phase Interaction examining the onset and elaboration phases are noted in the last column with the distance between the peak evident in the t-test and the interaction.

Lobe/Region	BA	H	Talairach			t	k	Condition X Phase Interaction
			x	y	z
Decrease > Increase Elaboration
Frontal
Middle frontal gyrus	46	L	−44	44	16	4.83	7	4 mm*
Superior frontal gyrus	10	L	−28	54	−3	5.69	24
	10	L	−36	46	−11	4.60	7
Other
Cerebellum		L	−32	−81	−25	5.13	27
		L	−32	−79	−16	4.77	10
		R	30	−77	−28	4.71	15
Basal ganglia		R	10	−3	17	4.01	11
Increase > Decrease Elaboration
Frontal
Inferior frontal gyrus	47	L	−38	28	−15	4.93	9
	45	L	−46	18	12	4.65	12
Middle frontal gyrus	11	R	28	34	−13	4.33	5	5 mm**
Temporal
Fusiform gyrus	19	R	38	−64	−10	5.72	93
Inferior temporal gyrus	19	L	−44	−55	−6	5.49	121
Superior temporal gyrus	22	L	−55	−50	8	4.33	5	5 mm**

^*Present in the (decrease elaboration > decrease onset) > (increase elaboration > increase onset) interaction contrast.

^**Present in the (decrease onset > decrease elaboration) > (increase onset > increase elaboration) interaction contrast.