Brain activation during standing balance control in dual-task paradigm and its correlation among older adults with mild cognitive impairment: a fNIRS study

Table 2 Activation levels of each ROI region in the task condition in the control and MCI groups

ROI (μmol/L)	Control group		MCI group		Group		Task		Group*Task
ROI (μmol/L)	Single task	Dual task	Single task	Dual task	p	η²_p	p	η²_p	p	η²_p
L45	−2.64 ± 5.10	0.72 ± 6.92	1.71 ± 5.97	2.65 ± 5.20	0.019	0.071	0.103	0.035	0.356	0.011
R45	−0.85 ± 6.45	0.19 ± 6.93	4.79 ± 6.76	3.76 ± 6.84	0.003	0.109	1.000	0.000	0.496	0.006
L10	0.45 ± 5.91	1.31 ± 5.79	3.11 ± 7.00	2.62 ± 6.11	0.085	0.042	0.651	0.004	0.421	0.006
R10	−1.28 ± 4.88	0.89 ± 5.96	2.32 ± 5.52	2.67 ± 5.18	0.029	0.060	0.301	0.014	0.453	0.008
L46	−1.91 ± 7.14	0.65 ± 7.50	4.45 ± 6.43	2.70 ± 7.30	0.003	0.109	0.878	0.000	0.347	0.012
R46	0.27 ± 9.06	−0.62 ± 7.86	4.12 ± 8.70	2.16 ± 5.58	0.065	0.044	0.631	0.008	0.762	0.001
L11	−2.48 ± 8.67	−0.42 ± 12.37	3.59 ± 15.22	2.87 ± 6.37	0.066	0.044	0.790	0.001	0.582	0.004
R11	−2.55 ± 8.35	1.11 ± 6.99	3.12 ± 10.27	5.84 ± 8.99	0.010	0.084	0.914	0.033	0.810	0.001

L45 = the left ventrolateral prefrontal cortex (L-VLPFC) and belonged to the left BA45. R45 = the right ventrolateral prefrontal cortex (R-VLPFC) and belonged to the right BA45. L10 = the left frontopolar cortex (L-FPC) and belonged to the right BA10. R10 = the right frontopolar cortex (R-FPC) and belonged to the right BA10. L46 = the left dorsolateral prefrontal cortex (L-DLPFC) and belonged to the left BA46. R46 = the right dorsolateral prefrontal cortex (R-DLPFC) and belonged to the right BA46. L11 = the left orbitofrontal cortex (L-OFC) and belonged to the left BA11. R11 = the right orbitofrontal cortex (R-OFC) and belonged to the right BA11. Statistically significant differences between groups (p < 0.05)

ISSN: 1471-2318