Figure 9.

Electrophysiology methods underestimate innervation. A, Distribution of synaptic currents induced using minimal stimulation paradigm at P3 and P4, reanalyzed from Hoffpauir et al. (2010). Dashed line indicates break in histogram at 500 pA. A', A”, Input size ratio [largest input (EPSC1)/second largest input (EPSC2)] shows groups of inputs with values <5 (A', A”, B, open histogram bars) and >5 (A', A”, B, black histogram bars). B, Dynamics for emergence of dominant large input, analyzed as for anatomical inputs in Figure 8A. Number of cells at each age indicated above histogram.