No genotype difference, 5 mice per group: p<0.05 with all events pooled (KS) 78.2%; neurons as n 15.9%; mice as n 4.6% No genotype difference, 8 mice per group: p<0.05 with all events pooled (KS) 78.5%; neurons as n 16.2%; mice as n 5.4% KO amplitude 15% smaller, 5 mice per group: p<0.05 with all events pooled (KS) 97.1%; neurons as n 72.2%; mice as n 40.5% KO amplitude 15% smaller, 8 mice per group: p<0.05 with all events pooled (KS) 99.2%; neurons as n 87.3%; mice as n 65.8%