Role of the Frontal Cortex in Standing Postural Sway Tasks While Dual-Tasking: A Functional Near-Infrared Spectroscopy Study Examining Working Memory Capacity
Table 2
Comparison of brain activity and motor and cognitive function in high-span group and low-span group.
Low-span group
High-span group
S-S task
O-S task
S-D task
O-D task
S-S task
O-S task
S-D task
O-D task
SMA
0.06 ± 0.57
0.06 ± 0.67
0.22 ± 0.41
0.09 ± 0.45
−0.06 ± 0.31
0.55 ± 0.84
0.08 ± 0.52
0.96 ± 0.66
PMC (right)
−0.01 ± 0.51
0.06 ± 0.71
0.18 ± 0.41
0.15 ± 0.81
0.03 ± 0.33
0.05 ± 0.94
0.38 ± 1.75
0.34 ± 0.85
PMC (left)
−0.04 ± 0.57
0.37 ± 2.03
0.07 ± 0.55
0.20 ± 0.76
−0.08 ± 0.42
0.35 ± 1.18
−0.08 ± 0.41
0.35 ± 1.17
DLPFC (right)
0.11 ± 1.23
0.53 ± 0.81
0.55 ± 1.44
0.60 ± 1.29
0.31 ± 1.58
0.23 ± 1.70
0.35 ± 1.21
2.00 ± 1.78†
DLPFC (left)
−0.11 ± 0.58
0.39 ± 0.64
0.37 ± 1.16
0.24 ± 0.75
0.13 ± 1.51
0.76 ± 1.88
0.39 ± 0.94
1.17 ± 1.41
Sway path length (cm)
68.3 ± 12.6
74.2 ± 14.0†
72.0 ± 10.8
94.0 ± 14.0†
71.3 ± 9.8
72.5 ± 9.7
74.9 ± 14.1
83.9 ± 7.60
Two-way repeated measures analysis of variance
Stroop test (number of correct answers)
19.8 ± 0.44 (sitting)
19.8 ± 0.4
19.6 ± 0.71
19.9 ± 0.27 (sitting)
19.8 ± 0.37
19.7 ± 0.63
S-S task: standing during a single task, O-S task: one leg standing during a single task, S-D task: standing during a dual-task, and O-D task: one leg standing during a dual-task. (ES: mean ± S.D.) Significant main effect of group (), significant different group interaction (), significant main effect of condition (),significant different low-span group (), and †significant different S-S task.
