Table 3. Brain regions associated with dual-task at pre training by pooling all participants.

Activated areas (Brodmann area)	Cluster size	x	y	z	t-value
Dual-task 80% Equation (emphasis on equation)
Right superior and middle frontal gyrus	15	21	32	38	3.67
Dual-task 50% Equation (equal division of attention)
Right middle frontal gyrus (8,9)	37	24	32	41	3.97
Left middle frontal gyrus (8)	21	−27	26	47	3.64
Dual-task 20% Equation (emphasis on detection)
Left middle frontal gyrus (8,9)	118	−30	23	44	4.56
Left superior frontal gyrus (9, 10)	71	−18	53	26	4.28
Right superior, medial and middle frontal gyrus (8,9,10)	223	21	32	38	4.27
left cerebelum	44	−18	−79	−43	3.81
Left anterior cingulate (24,32)	52	−6	32	8	3.78
Right precuneus and cingulate gyrus (7, 31)	35	15	−37	47	3.72
Right cerebellum	12	3	−49	−52	3.57

P<0.001 uncorrected, K = 10.