Herbal Extracts That Reduce Ocular Oxidative Stress May Enhance Attentive Performance in Humans

Figure 6

Within-group comparisons of two target TF maps in control and experimental group. (a)–(d) We plotted results of significant clusters (). Interestingly, all the clusters in the within-group analysis were detected around high delta and low theta band (2–6 Hz). For each cluster, we showed a grand averaged bar graph, a topography, and two target TF maps over subject from control or experimental group. Bar graphs show quantified attention effect (alerting, orienting, and conflict). Topography shows significant values (FDR corrected) and discriminative area between extracted spatial features of two conditions. Small black dots mean channel location and red dots indicate the most discriminative channel location. Lastly, we showed TF maps from the red dotted channel. Black squares in the TF map mean the cluster location in that channel. All the 2–6 Hz activities were peaked around 400 msec and then decreased. Commonly, significant values were detected around parietal area for all comparisons. We could not find any significant cluster or effect from alerting and conflict conditions in the control group.