Figure 3

The bar graphs show 0 V% (a,b), 1 V% (c,d), 2LV% (e,f) and 2UV% (g,h) computed over HP (a,c,e,g) and SAP (b,d,f,h) series as a function of the experimental condition (i.e. REST and MHUT) in SURVs (dark bar) and NonSURVs (white bar). Data are reported as mean plus standard deviation. The symbol *indicates p < 0.05.