only marginally significantP = 0.080
Although there was no significant interaction between session and ROI ( F 1,11 = 1.05, P = 0.400), improved decoding accuracy after compared with before training was more prominent in V1 (paired t -test: t 11 = −3.62, P = 0.004) and V2 (paired t -test: t 11 = −4.16, P = 0.002) but only marginally significant for V3d (paired t -test: t 11 = −1.93, P = 0.080).