Fig. 2.

Concentration dependence of dopamine effect on fEPSP in CA1. A, Concentration–response data (Mean ± SEM) for the dopamine effect on the maximal initial slope of fEPSP in the pp and sigmoidal fit using logistical model.B, Concentration–response data for dopamine effect in the sc input (maximal fEPSP slope). Insets, fEPSP traces from a representative experiment when three concentrations of dopamine (1, 5, and 20 μm) were applied. Experiments were done in regular ACSF. The dopamine effect was estimated between 10 and 15 min of dopamine application relative to the baseline before application. Significance in paired t test: *p < 0.05; ***p < 0.001.