Article: Neuregulin-1 signals from the periphery regulate AMPA receptor sensitivity and expression in GABAergic interneurons in developing neocortex.

Input resistance and series resistance were determined by measuring the current response to a −5 mV pulse from the holding potential. Cell capacitance measurements were made by integrating capacitive transients. Afterhyperpolarization (AHP) was determined after the first action potential (AP) triggered by the minimum depolarizing current (100–300 pA). Voltage sag was determined by measuring voltage responses to a hyperpolarizing current (−400 pA, 450 ms). Action potentials were generated by current injection (800 pA, 450 ms), and their frequency was measured. No statistical differences were detected in these electrophysiologic properties.