Specifically, recordings of the field excitatory postsynaptic potentials (fEPSPs) indicated that fEPSP slopes at 60 min following tetanus were not different from control values in Orai1 KO brain slices in both male and female mice, whereas in WT slices they were 125% of the control (Figures 5B and 5C). This evidence concerns the gene ORAI1 and tetanus.