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Cerebellar folding influences polarization along the sulci. The principal axis of the Purkinje cells (indicated with blue arrows—the color code has no particular significance in the inset) along a trace of cerebellar gyri is subject to an electric field. The resulting polarization (maximal hyperpolarization or depolarization) is indicated in false color along the trace. Adapted from Rahman et al. (2014). With permission from Elsevier.
