Table 5.

Correlations with changes in brain activity, adherence hours, verbal fluency, and age

Region	Adherence Hours	Verbal Fluency Gains	Age
High Challenge
L Mid Cingulate Gyrus	0.43*	0.32	0.22
R Precuneus	0.53*	0.38†	0.66*
L Intraparietal Sulcus	0.37†	0.18	0.50*
R Inferior Temporal Gyrus	0.64*	0.43*	0.54*
L Middle Temporal Gyrus	0.37†	0.35†	0.44*
Low Challenge
L Mid Cingulate Gyrus	–0.19	–0.43†	0.39
R Precuneus	–0.13	–0.02	0.28
L Intraparietal Sulcus	–0.07	–0.31	0.28
R Inferior Temporal Gyrus	0.01	–0.25	0.30
L Middle Temporal Gyrus	0.34	0.08	0.20

Notes. ^†p <  0.10, ^*p <  0.05, ^*p <  0.01, L = left, R = right.