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. 2013 Sep 19;8(9):e75688. doi: 10.1371/journal.pone.0075688

Table 2. Paired pulse ratios for glutamate component.

Ca++ (0.1 mM) Ca++(2.0 mM) Ca++ (4.0 mM)
10 Hz 20 Hz 50 Hz 100 Hz 10 Hz 20 Hz 50 Hz 100 Hz 10 Hz 20 Hz 50 Hz 100 Hz
P1–2 (6) 1.0±0.1 1.2±0.1 1.5±0.4 0.7±0.1 0.8±0.1 0.8±0.1 0.7±0.1 0.3±0.1 0.8±0.1 0.7±0.1 0.5±0.1 0.3±0.1
P3–5 (7) 1.1±0.2 1.4±0.2 1.6±0.3 1.2±0.2 1.0±0.1 1.0±0.1 0.1±0.1 0.5±0.1 0.9±0.1 1.0±0.1 0.7±0.1 0.4±0.1
P7–8 (5) 1.4±0.4 1.1±0.2 1.2±0.2 1.2±0.2 0.7±0.1 0.8±0.1 0.7±0.1 0.4±0.2 0.7±0.1 0.6±0.1 0.6±0.1 0.3±0.1
P9–10 (6) 1.0±0.1 0.9±0.1 1.2±0.2 0.9±0.1 0.8±0.1 0.8±0.1 0.8±0.1 0.6±0.1 0.8±0.1 0.8±0.04 0.8±0.1 0.5±0.1

Paired pulse ratios for the glutamate component for different external Ca++ concentrations, stimulation frequencies, and postnatal age. Non-parametric 1-way ANOVA (Kruskal-Wallis test) across age revealed no significant differences. The N of each age group is in parentheses.