Rett SyndromePupil DisordersMethyl-CpG-Binding Protein 2PupilSyndromeX Chromosome InactivationTonic PupilChromosomal Proteins, Non-HistoneMutationReflex, PupillaryAutistic DisorderPhenotypeDisease Models, AnimalGestalt TheorySpasms, InfantilePlay TherapyBipolar DisorderRepressor ProteinsIntellectual DisabilityMental DisordersDown SyndromeDNA Mutational AnalysisChromosomes, Human, XMetabolic Syndrome XBrainDosage Compensation, GeneticAnxiety DisordersMood DisordersRotarod Performance Test