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. 2009 Jun;101(6):3192–3198. doi: 10.1152/jn.91111.2008

FIG. 3.

FIG. 3.

AMPAR miniature excitatory postsynaptic currents (mEPSCs) are larger in the NAc shell from stressed animals. A: sample traces showing typical mEPSCs at −70 mV. Scale bar: 10 pA, 100 ms. B: cumulative amplitude distributions of mEPSCs (1-pA bins) measured in the NAc shell MSNs, showing a shift toward larger events following stress relative to control (Kolmogorov-Smirnov test; P < 0.022). C: frequency histogram showing distribution of mEPSC amplitudes (1-pA bins) in control (crosshatched bars) and stressed (black bars) animals. Inset: average mEPSC amplitude is increased in the NAc shell of stressed animals relative to controls (t-test; P < 0.02). D: cumulative interevent interval distributions of mEPSCs (50-ms bins) in the NAc shell of control and stressed mice. E: frequency histogram showing distribution of mEPSC interevent intervals (10-ms bins). Inset: average mEPSC frequency is similar in NAc shell MSNs in control and stressed mice (t-test; P > 0.73).