(B) Extracellular recordings (fEPSPs) in hippocampal brain slices from WT-empty (n=8), MPS-IIIA-empty (n=5) and MPS-IIIA-myc-CSPα mice (n=5). The upper panel shows representative fEPSP traces. Summary graph shows the fEPSPs slope as a function of the applied stimulus intensity. Data are means ± s.e.m.; *P < 0.05 (WT-empty vs MPS-IIIA-empty), #P < 0.05 (MPS-IIIA-myc-CSPα vs. MPS-IIIA-empty), Kruskal-Wallis ANOVA followed by Dunn's test. 