Fig. 2.

PC AP properties do not change after LTD induction. A: change in time to first spike in the control (n = 9) and LTD groups (n = 8 cells). *P < 0.05. B, top: representative AP phase plane plot generated with the same input current before (pre) and after (post) LTD induction. Bottom, detail from the top phase plane showing the threshold line. C, top: change in AP thresholds in the control group for each input current amplitude (n = 9). Bottom, same measurement for the LTD group (n = 8). Values are means ± SE. dV/dt, change in voltage over time.