Autistic DisorderRett SyndromeDevelopmental DisabilitiesMethyl-CpG-Binding Protein 2Child Development Disorders, PervasiveWilliams SyndromeAngelman SyndromeNervous System DiseasesBrainIntellectual DisabilityChild DevelopmentMental DisordersSchizophreniaPrader-Willi SyndromeAttention Deficit Disorder with HyperactivityInfant, NewbornPrenatal Exposure Delayed EffectsSocial BehaviorCommunication DisordersChromosomes, Human, Pair 15Stereotyped BehaviorDisease Models, AnimalBipolar DisorderPregnancyLearning DisordersFragile X SyndromeDNA Copy Number VariationsSocial Behavior DisordersPhenotypeNeuronal Migration DisordersPsychomotor DisordersNeuronsCognition DisordersGenetic Predisposition to DiseaseMagnetic Resonance ImagingNerve Tissue ProteinsFetal Alcohol Spectrum DisordersInfant, Extremely Low Birth WeightThimerosalNeuropsychological TestsMicrocephalyBrain DiseasesBehavior, AnimalPaternal AgeInfant, PrematureCerebral PalsyAsperger SyndromeCerebral CortexCentral Nervous System DiseasesAnxiety DisordersTourette SyndromeMood DisordersCognitionCell Adhesion Molecules, NeuronalNeurofibromatosesMutationInfant, Premature, DiseasesExploratory BehaviorCase-Control StudiesGenomic ImprintingRotarod Performance TestLeukomalacia, PeriventricularHaploinsufficiencyChromosomes, Human, XAbnormalities, MultipleAnimals, NewbornChromosomes, Human, Pair 16Language Development DisordersNeurogenesisDiagnostic and Statistical Manual of Mental DisordersAmygdalaSeizuresMice, Inbred C57BLMice, KnockoutNervous SystemNeural PathwaysFragile X Mental Retardation ProteinSelf-Injurious BehaviorEpilepsyNerve NetGene DosageNeurologic ExaminationChromosome DeletionIntelligenceAnalysis of VarianceGenotypeChromosomes, Human, Pair 7Age FactorsNeuronal PlasticitySyndromeMotor Skills DisordersSynapsesRisk FactorsChromosomal Proteins, Non-HistoneGenetic Association StudiesFrontal LobeCerebellumFamily HealthHippocampusIntelligence Tests