Table 3.

Brain responses for [(2b-0b)_blue- (2b-0b)_orange].

Regions	X, Y, Z	T	P-value
Common group activations
Fusiform gyrus [a]	36 –46 –18	4.06	≤0.001
Frontal inferior cortex [b]	–38 18 34	3.79	≤0.005
Occipital left (lateral) [c]	–34 –90 –4	5.92	≤0.02
	–48 –78 –4	3.72	≤0.005
Occipital right [d]	46 –82 –2	3.74	≤0.005
	32 –90 22	3.48	≤0.009
Group differences
Anterior temporal pole [e]	– -36 8 -36–26∗∘	9.17	≤0.008
	– -50 4 – -22∗
Hippocampus [f]	– -24 – -28 – -10∗#§°	11.31	≤0.002
DLPFC [j]	– -32 32 42∗#§°	9.70	≤0.005
MPFC [h,j]	– -2 52 – -4∗#§°	11.91	≤0.001
	2 52 – -4∗#§°	10.93	≤0.001
	2 56 8*#§°	9.48	≤0.005
ACC [i]	6 38 8*#§	10.42	≤0.003
Precentral gyrus [k]	40 – -18 66∗#§°	11.24	≤0.002
	– -14 – -10 76#§°	11.13	≤0.01
	14 – -8 72#§°	10.30	≤0.01
Mid cingular gyrus [l]	10 – -4 46#°	8.56	0.03

Brain responses to the n-back task [(2b-0b)blue – (2b-0b)orange] according to light condition. Letters between [ ] correspond to letters of Figure 4. P < 0.05 values corrected for multiple comparisons over small volumes of interest taken a priori location based on the literature. In the group differences section, significant results are represented as ^∗(young vs. older-nl); #(young vs. older-iol); §(young);° (with frontal and parietal areas as covariates).