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. 2010 Oct 15;4:128. doi: 10.3389/fncel.2010.00128

Figure 4.

Figure 4

High [Ca2+]o increases frequency-dependent-depression (FDD) at atmospheric pressure. Left: Dendritic recordings showing the effect of [Ca2+]o on trains of 5 fEPSPs (50 Hz) at pressure of 0.1 MPa (A) and 10.1 MPa (C). Calibration bars are the same for both conditions. Right: Statistical analysis of FDD at 50 Hz. Each Ex was normalized with respect to its E1 at its corresponding condition of [Ca2+]o and pressure. Effect of [Ca2+]o on FDD at pressure of 0.1 MPa (B) and at 10.1 MPa (D). *p < 0.05, **p < 0.01 depict statistical difference between stimuli at 2 mM and 4 mM [Ca2+]o (independent t-test). All graphs display means ± SE (n = 6 for each condition).