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. 2014 Jan 1;522(11):2518–2531. doi: 10.1002/cne.23547

Figure 7.

Figure 7

Cav2.1 and Cav2.2 activity. A,B: Comparison of calcium activity in cells exhibiting positive expression for Cav2.1 (A) and Cav2.2 (B) with cells displaying no detectable expression for this VGCC (negative cells). Activity for the cells was analyzed over a 2-hour imaging session, and each dissection (st.14, 18, or 22) was divided into three time blocks. A single time block represents 40 minutes of the image, i.e., “a” is t = 0 to t = 40 minutes, “b” is t = 40 minutes to t = 80 minutes, and “c” is t = 80 minutes to t = 120 minutes. Numbers of spikes in positive and negative cells were compared using the Mann–Whitney U-test. Comparisons with P values ≤ 0.05 are marked with an asterisk (*) on the figure. For Cav2.1 experiments, n = 340 cells (neural plate), 294 cells (neural fold), and 1,228 cells (neural tube). For Cav2.2 experiments, n = 357 cells (neural plate), 139 cells (neural fold), and 1,197 cells (neural tube).