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. Author manuscript; available in PMC: 2010 Apr 22.
Published in final edited form as: Nature. 2009 Oct 22;461(7267):1126–1129. doi: 10.1038/nature08487

Figure 2.

Figure 2

Excitatory postsynaptic currents (EPSCs) in Type II fibers. a. Elevated extracellular potassium evoked EPSCs. Inset: EPSC waveform. b. Representative EPSC amplitude distribution (scaled noise in grey). c. Average EPSCs and d., resulting I-V relation. e. EPSC diary plot showing reversible block by NBQX (10 μM). f. EPSC diary plot showing reversible block by nifedipine (50 μM). g.-h. Amplitude versus decay time constant for EPSCs from two fibers. i. Mean decay time constant versus mean EPSC amplitude from 30 fibers. Linear regression fit (F1,29=16.43, p=0.004; r2=0.37) j. Exemplar EPSC waveforms (fiber in ‘h’). P5-P9 rats.