Figure 2.

Effects of Ca²⁺ channel antagonists on serotonin release. The effects of 1 μM GVIA, IVA and MVIIC on basal, Ca²⁺- and K⁺-evoked hippocampal serotonin releases are represented in a, b and c, respectively. The ordinates indicate the mean±s.d. (n=6) of extracellular serotonin levels (fmol sample⁻¹), and abscissas show the time in minutes (min). The mean values of serotonin release level obtained between perfusion with and without Ca²⁺ antagonists were compared by one-way ANOVA with Tukey's multiple comparison. Asterisk marks which indicate the statistical significance were excluded to avoid over complicating the figures.