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. 2003 Dec 10;23(36):11363–11372. doi: 10.1523/JNEUROSCI.23-36-11363.2003

Figure 1.

Figure 1.

Properties of AP backpropagation in prefrontal pyramidal neurons. A, Whole-cell recordings from the soma (bottom) and apical dendrite (top; 360 μm from the soma) during AP trains generated by depolarizing current steps (500 msec; 650 pA) delivered via the somatic recording electrode. B, The first APs from the trains shown in A were enlarged to demonstrate that APs were recorded first at the soma and subsequently in the apical dendrite. C, Time delay between somatic and dendritic AP peak versus distance from the soma. D, Mean AP conduction velocity versus distance from the soma. E, Plot of AP attenuation with distance from the soma. F, Plot of steady-state attenuation with distance from the soma. C-F, n = 31.