Synapsins rescue amplitude of eIPSCs in TKO neurons. A, Representative eIPSCs (single trials) recorded from TWT and TKO neurons, as well as from TKO neurons expressing indicated synapsin isoforms. Stimulus artifact has been blanked for clarity. B, Mean amplitudes of evoked IPSCs in TWT (black, n = 14) and TKO neurons (white, n = 14), as well as in TKO neurons expressing indicated synapsin isoforms (shaded). TKO and TWT data were compared with unpaired t test, whereas the rest were compared by ANOVA with Holm–Bonferroni post hoc test; asterisks indicate significant differences (p < 0.05). Sample sizes for each isoform are as follows: synapsin Ia (15), Ib (25), IIa (14), IIb (17), and IIIa (19).