Fig. 7
From: BCI inside a virtual reality classroom: a potential training tool for attention
The t-values from the permutation test for all five subject through the entire epoch duration (for the ANISPELL recordings). The negative values are colored with a blue color-map. They show negative t-values that are significant. The gray colored pixels are non-significant t-values found from the controlled α fam -level estimate and are on average between 4 and −4 (±0.13). The red color-map represents positive t-values that are all significant