Article: Electrophysiological properties of genetically identified subtypes of layer 5 neocortical pyramidal neurons: Ca²⁺ dependence and differential modulation by norepinephrine.

Table 5.

Voltage clamp of the mAHP and sAHP currents

	Tail, pA	τ_medium	τ_slow	% Slow τ
Etv1	259 ± 17 (14)	66 ± 10 (14)^†	933 ± 101 (14)^†	52 ± 4 (14)^†
Glt	372 ± 30 (14)^*^†	74 ± 11 (14)^†	791 ± 75 (14)^†	18 ± 4 (14)^*
Layer 2/3	227 ± 26 (21)	149 ± 18 (21)	2611 ± 550 (21)	16 ± 2 (21)

Data are presented as means ± SE (n, number of cells). Currents were elicited by a 200-ms voltage step from -70 mV to +30 mV. Tail currents were measured upon a step to -60 mV. Tail is the difference between the initial and final amplitude of the tail current at -60 mV; tail currents were fit with the sum of 2 time (τ) constants (τ_medium and τ_slow). τ_medium is the faster τ component corresponding to the medium AHP (mAHP) current (I_mAHP). τ_slow is τ for the sAHP current (I_sAHP). % Slow τ is the percentage of tail amplitude accounted for by τ_slow.
↵* Significant difference glt from etv1 (P < 0.05, t-test).
↵† Significant difference vs. layer 2/3 (ANOVA with Tukey's post hoc test).

Inferred neuron-electrophysiology data values

Neuron Type	Neuron Description	Ephys Prop	Extracted Value	Standardized Value	Content Source