TRPC3 and mGluR1 isoform expression was heterogeneous across cerebellar lobules. Relative mRNA levels of (a) total TRPC3, (b) TRPC3b isoform, and (c) TRPC3c isoform were heterogeneous across lobules IV/V, lobule X, and the flocculus. Relative mRNA level (d) total mGluR1, (e) mGluR1a, and (f) mGluR1b across the three lobules demonstrate heterogeneity in mGluR1b expression. a–c, *p < 0.05, ***p < 0.001, ****p < 0.0001, ordinary one-way ANOVA followed by Tukey's multiple-comparisons test. d–f, ***p < 0.001, ****p < 0.0001, Kruskal–Wallis test followed by Dunn's multiple-comparisons test. All data are mean ± SEM. Additional details on statistics are in Extended Data Table 1.