Figure 7. Summary.

The data pooled from four animals are shown. The stimulated whiskers were classified into four groups: PPW, 1-D, 2-D, and Rest. 1-D indicates the whiskers surrounding the PPW. 2-D indicates the whiskers surrounding the 1-D whiskers. ‘Rest’ indicates all of the whiskers excluding the PPW, 1-D and 2-D groups. *p < 0.001. (a) Normalized LFP response to the stimulation of the PPW (total of 240 responses in 4 mice), 1-D (total of 1740 responses, 4 mice), 2-D (total of 2400 responses, 4 mice), and Rest (total of 420 responses, 4 mice) (Kruskal-Wallis one-way ANOVA on ranks, H = 1005.861, p < 0.001; Dunn’s method for multiple comparisons; PPW vs. 1-D: p < 0.001; 1-D vs. 2-D: p < 0.001; and 2-D vs. Rest: p < 0.001). (b,c) Normalized Ca²⁺ signals and calcium transients to stimulation of the PPW (total of 483 responses, 4 mice), 1-D (total of 3489 responses, 4 mice), 2-D (total of 4764 responses, 4 mice), and Rest (total of 841 responses, 4 mice) (Fig. 7b; Kruskal-Wallis one-way ANOVA on ranks, H = 418.122, p < 0.001; Dunn’s method for multiple comparisons; PPW vs. 1-D: p < 0.001; 1-D vs. 2-D: p < 0.001; and 2-D vs. Rest: p = 0.426) (Fig. 7c; Kruskal-Wallis one-way ANOVA on ranks, H = 190.342, p < 0.001; Dunn’s method for multiple comparisons; PPW vs. 1-D: p < 0.001; 1-D vs. 2-D: p < 0.001; and 2-D vs. Rest: p = 0.150) (d) The correlation between the LFP signals and the Ca²⁺ signals (total of 80 whiskers inspected from 4 mice, Pearson correlation, r = 0.66, p < 0.0001). (e) The correlation between the LFP signals and transient counts (total of 80 whiskers, Pearson correlation, r = 0.57, p < 0.0001).