Peripheral blood mononuclear cells (PBMCs) were isolated from a WOREE patient and from his healthy parents and were reprogrammed into iPSCs, and subsequently were differentiated into COs. Average firing rate over 24 neurons from WSM P COs (4 organoids), 41 neurons from WSM S COs (3 organoids) and 40 neurons from WSM S W-AAV organoids (3 organoids). Statistical significance was determined using one-way ANOVA with Tukey's multiple comparisons test. Bars represents the mean ± SEM. Data information: ns (non-significant), *p ≤ 0.05, **p ≤ 0.01, ***p ≤ 0.001, ****p ≤ 0.0001. 