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. Author manuscript; available in PMC: 2015 Dec 1.
Published in final edited form as: Hippocampus. 2014 Jul 25;24(12):1493–1505. doi: 10.1002/hipo.22329

Figure 2. Stellate cells exhibit nonlinear impedance.

Figure 2

Ai Membrane impedance as a function of frequency for a stellate cell at different mean voltages (as indicated). ii,iii Average ± SEM impedance of stellate neurons (n=10) at their resting potentials and near threshold. Bi Impedance measurements in the same cell as in (Ai) in 0.5 µM tetrodotoxin (TTX). ii,iii Average ± SEM impedance across all stellate neurons recorded in TTX (n=8) at resting and threshold potentials. Ci Impedance of a putative entorhinal layer II/III pyramidal neuron at a range of mean voltages. ii,iii Average ± SEM impedance of putative pyramidal neurons (n = 5) at resting and threshold potentials. Impedance is sensitive to voltage in stellate neurons under control conditions (A) but not in TTX (B) or in nearby pyramidal neurons (C).