Figure 2
From: Perceived mental effort correlates with changes in tonic arousal during attentional tasks
Relative theta/beta (θ/β) ratio for frontal (F3 & F4) and parietal (P3 & P4) electrodes for the stages of the testing session. Relative theta/beta (θ/β) ratio for frontal (F3 & F4) and parietal (P3 & P4) electrodes for the various stages of the testing session: resting eyes open (REO), continuous performance task (CPT), go/no-go task (GNG), and cued target detection task (CTD). *θ/β ratio for F3 and F4 was greater during GNG than during CTD (p < 0.0125, n = 46, mean ± SEM).