AtaxiaNervous System DiseasesCerebellar AtaxiaFriedreich AtaxiaBrain Diseases, Metabolic, InbornSpinocerebellar AtaxiasNeurologic ExaminationSomatosensory DisordersQuadriplegiaGait AtaxiaBrainCognition DisordersCerebral PalsyAtaxia TelangiectasiaStrokeBrain DiseasesIntellectual DisabilityThoracic VertebraeMagnetic Resonance ImagingCervical VertebraeAtaxia Telangiectasia Mutated ProteinsSeverity of Illness IndexInfant, NewbornSpinal FracturesAnalysis of VarianceBrain InjuriesDisability EvaluationTreatment OutcomeEpilepsyRetrospective StudiesSpinal Cord InjuriesTime FactorsActivities of Daily LivingDisease Models, AnimalFollow-Up StudiesAcute DiseaseCase-Control StudiesCerebral CortexProspective StudiesRisk FactorsCohort StudiesMild Cognitive ImpairmentIron-Binding ProteinsPrognosisMice, Inbred C57BLMachado-Joseph DiseaseNeuropsychological TestsTrinucleotide Repeat ExpansionCerebellumMemory DisordersTrinucleotide RepeatsPedigreeMutationTumor Suppressor ProteinsCell Cycle ProteinsVision DisordersPurkinje CellsApraxiasProtein-Serine-Threonine KinasesAlzheimer DiseaseCerebellar DiseasesAge of OnsetNerve Tissue ProteinsAtrophyDementiaVisually Impaired PersonsOcular Motility DisordersAmnesiaMemorySyndromeFragile X SyndromePhenotypeCognitionMaze LearningGenes, RecessiveDysarthriaLanguage DisordersDNA-Binding ProteinsFragile X Mental Retardation ProteinHearing LossAgingPsychomotor PerformanceDNA DamageVision, LowMice, Neurologic MutantsNystagmus, PathologicHippocampusMyoclonic Cerebellar DyssynergiaMovement DisordersLanguage Development DisordersPsychomotor DisordersHearing DisordersNuclear ProteinsSensation DisordersBlindnessLearning DisordersMotor ActivityDNA Repeat ExpansionGenes, DominantExecutive Function