Fig. 2
Comparison of the PFC subregions between groups. Values are presented as mean ± standard error of the mean. a Activity of PFC subregions in different phases, b Activity of PFC subregions in different phases in different tasks, c Rt. orbitofrontal cortex, d Rt. orbitofrontal cortex, e Rt. dorsolateral PFC. *P < 0.05; **P < 0.01; ***P < 0.001. EST, early single-task condition; EDT, early dual-task condition; LST, late single-task condition; LDT, late dual-task condition; HbO2, oxygenated hemoglobin; PFC, prefrontal cortex; DLPFC, dorsolateral PFC; RPFC, rostral PFC; VLPFC, ventrolateral PFC; Rt, right; Lt, left