Theta burst firing modifies membrane properties of BLA neurons. A, Neuronal input resistance was decreased after TBF (in the example displayed here, baseline Rn = 39 MΩ, post-TBF Rn = 32 MΩ; black circle, baseline; gray circle, post-TBF). B, TBF also led to a faster time constant (top; baseline, 16.2 ms; post-TBF, 13.7 ms; black line is baseline, gray line is post-TBF, red line is average fit). C, Neither input resistance nor membrane time constant was significantly altered by TBF if performed without depolarization from Vrest.