Fig. 3.
Group data of normalized slope population excitatory postsynaptic potential (pEPSP) ± SD, evoked by 2x and 4x threshold (T) stimulation, after different doses (% volume) of isoflurane; baseline is 0 dose, and 24 h was the average recorded 1 day after isoflurane administration. (A) Normalized basal dendritic pEPSP slope evoked by stimulation of stratum oriens. (B) Normalized monosynaptic apical dendritic (Apical: mono) pEPSP slope after stratum radiatum stimulation. (C) Normalized trisynaptic apical dendritic (Apical: trisynaptic) pEPSP slope after medial perforant path stimulation. All recordings were made by a multichannel silicon probe. **P < 0.01, *P < 0.05, difference from baseline, post hoc Newman–Keuls test, after a significant group effect in one-way repeated measures ANOVA; n is the number of rats used.