The microelectrode arrays. In a), diagrams illustrate effects of cCSF and pCSF collected at different time points during the course of the disease. Stars illustrate significances against CSF taken 4 days after admission (May 1st) or five weeks after admission (June 1st). In b), diagrams illustrate quick effects of cCSF (left) or pCSF (middle and right) in comparison to aCSF over a time course of 45 minutes (15 minutes in aCSF, 15 minutes in pCSF and 15 minutes again in aCSF). Bars represent standard error of the mean.