Figure 5.

Dopamine does not modulate single backpropagating APs. A, Dendritic recording (360 μm from the soma) of APs generated by somatic current injection before (top) and during (middle) bath application of 10 μm dopamine. Superimposed traces (bottom) demonstrate the absence of an effect of dopamine on AP waveform. B, C, Change in AP amplitude (B) and half-width (C) during dopamine application versus distance from the soma. Dashed line represents zero change. Solid lines are linear regression fits to the data.