Cell and recording parameters for cortical neurons and glial cells in vivo according to the WS and the pooled TZ and TZS whole-cell access methods.

Parameters include the cell membrane time constant (τ0) and input resistance (Rin), an estimate of the relative cell size Lrel, the resting potential (Vrest), the maximum depolarization rate (dV/dt) and peak (Vpeak) of action potentials of regular-spiking neurons in the rat, the absolute (Ra) and relative (Ra/Rin) access resistance, and the stability of the access resistance (Δra/Δt). Statistical significance in this table is indicated only when found for the ANOVA between the WS, and pooled TZ and TZS populations (this choice was justified because of the consistency of results between the TZ and TZS endpoints).