. Author manuscript; available in PMC: 2010 Mar 1.

Published in final edited form as: Psychol Aging. 2009 Mar;24(1):139–153. doi: 10.1037/a0014029

Table 4.

Regions of Interest (ROI) used to examine effects of Confidence Level (CONF: High or Low) and Recognition Accuracy (ACC: Correct or Incorrect) during recognition trials.

Region	Coordinates	# Voxels	Main Effects	Interactions	Effects Driving Interaction
Medial Parietal Cortex	0 −69 33	546	CONF: F(1,30)=5.27, p<0.029, η_p²=0.15	n.s.
Basal Ganglia	−33 −9 −3	92	CONF: F(1,30)=4.68, p<0.039, η_p²=0.14	n.s.
Left Lateral Parietal	−48 −60 27	525	CONF: F(1,30)=12.54, p<0.001, η_p²=0.30	CONF × AGE: F(1,30)=4.23, p<0.048, η_p²=0.12	Younger CONF: F(1,15)=12.50, p<0.003, η_p²=0.46; Older CONF: n.s., η_p²=0.09
Medial Prefrontal Cortex	0 57 12	309	CONF: F(1,30)=15.81, p<0.0005, η_p²=0.35	CONF × AGE: F(1,30)=11.44, p<0.002, η_p²=0.28	Younger CONF: F(1,15)=21.37, p<0.0004, η_p²=0.59; Older CONF: n.s., η_p²=0.016
Right Lateral Parietal	54 −63 30	71	ACC: F(1,30)=4.65, p<0.039, η_p²=0.13	n.s.

Note: Main effects of condition (CONF, ACC) and interactions between conditions or group (Age: Younger or Older) from a Mixed ANOVA are reported. For regions with significant interactions, results from relevant within groups ANOVAs are reported. Partial eta-squared (η_p²) values are reported as a measure of effect size.