Rate of clustering in central and occipital derivations. Rate of clustering is depicted for central and occipital derivations. Each bar represents the results of the cluster analysis for a given derivation in the eyes open and closed conditions with the percentage of participants who cluster correctly noted on top. The y-axis shows the number of participants who cluster correctly. Significant differences (p<0.05; n.s., non-significant) were analyzed using a χ2 test.
Benz et al. BMC Neuroscience 2013 14:117 doi:10.1186/1471-2202-14-117