Membrane potential values during FRs and SLEs. Averaged membrane potential values (±SD) during resting (Vrest, before 4AP perfusion), fast runs (FRs), phase I, phase II, the transition between phase II and III characterized by 10 Hz activity and phase III of SLEs are reported. The range (±SD) of the firing threshold is also reported. Mean values obtained from neurons located in layers II and III are represented by filled circles and triangles, respectively. ANOVA showed statistically significant differences of membrane potential values against all other phases of FR-SLE (FR peak, phases I, II, and III) in both cell populations (*P < 0.05; **P < 0.01).
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