Fig. 4From: Activity-dependent decrease in contact areas between subsurface cisterns and plasma membrane of hippocampal neuronsBoth the total number of SSC (a) and the average length of SSC (b) significantly decreased upon depolarization with high K+ (90 mM, 2 min) and returned to control values upon 30 min of recovery in control medium. (n) = number of experiments listed on the bottom of bars in (a). Complete data from all experiments are listed in Additional files 1 and 2 (exp 1–4). For number of SSC: P < 0.005, control vs. K; P < 0.05, K vs. recovery by ANOVA. For length of SSC: P < 0.0005, control vs. K; P < 0.005, K vs. recovery by ANOVABack to article page