CerebellumPurkinje CellsMice, Neurologic MutantsCerebellar CortexCalbindinsNeuronsS100 Calcium Binding Protein GAnimals, NewbornNeurogliaMice, Inbred C57BLDendritesNerve Tissue ProteinsMice, Inbred ICRImmunohistochemistryIn Situ HybridizationSynapsesGene Expression Regulation, DevelopmentalCells, CulturedMice, KnockoutMice, TransgenicCerebellar DiseasesCell DifferentiationCell MovementBrainCerebellar NucleiCerebellar AtaxiaMagnetic Resonance ImagingCerebellar NeoplasmsConditioning, Eyelid