Fig. 10.

Comparison of spontaneous intrinsic bursts recorded in slices from control (A) and experimental (B) rats. Traces 1compare the waveform of the first action potential in the intrinsic bursts shown below in traces 2 and 3 at slower time bases. The duration of the depolarizing envelope that underlies the burst discharge was similar in the two treatment groups. Postburst afterhyperpolarization are evident in traces 3. Resting membrane potential and input resistance: A, −68 mV, 180 MΩ; B, 70 mV, 200 MΩ. Age: control, 31 d; experimental, 25 d.