highly significantP < 10 −10
Using this epilepsy model, we were able to demonstrate that the genetic pH reporters E 2 GFP and deGFP4 are able to detect a highly significant negative shift in pH during epileptiform activity (E 2 GFP: P < 10 −10 , n = 40, deGFP4: P < 10 −7 , n = 19, paired t test).