AtrophyAlzheimer DiseaseMuscular AtrophyOptic AtrophyAmyloid beta-PeptidesMuscular Atrophy, SpinalMultiple System AtrophyBrainAmyloid beta-Protein Precursortau ProteinsNeurofibrillary TanglesSpinal Muscular Atrophies of ChildhoodPlaque, AmyloidOlivopontocerebellar AtrophiesApolipoprotein E4DementiaMagnetic Resonance ImagingCognition DisordersGyrate AtrophyNeurofibrilsPresenilin-1Geographic AtrophyAmyloid Precursor Protein SecretasesAmyloidDementia, VascularMild Cognitive ImpairmentNeuropsychological TestsSurvival of Motor Neuron 1 ProteinHippocampusAgingMuscular Disorders, AtrophicApolipoproteins EOptic Atrophy, Autosomal DominantSMN Complex ProteinsPeptide FragmentsMice, TransgenicLewy Body DiseaseCerebral CortexDisease Models, AnimalAge of OnsetMental Status ScheduleDisease ProgressionCognitionPresenilin-2Nerve DegenerationNeuronsSurvival of Motor Neuron 2 ProteinHindlimb SuspensionNeurodegenerative DiseasesTemporal LobeMemory DisordersNerve Tissue ProteinsAutopsyAspartic Acid EndopeptidasesLongitudinal StudiesCholinesterase InhibitorsAniline CompoundsSubstantia InnominataMuscle, SkeletalBulbo-Spinal Atrophy, X-LinkedFrontotemporal DementiaMemantineGastritis, AtrophicPresenilinsBrain ChemistrySKP Cullin F-Box Protein LigasesSupranuclear Palsy, ProgressiveImage Processing, Computer-AssistedCase-Control StudiesParkinson DiseasePositron-Emission TomographyNational Institute on Aging (U.S.)Optic Atrophies, HereditaryCerebral Amyloid AngiopathyOrgan SizeBiological MarkersAphasia, Primary ProgressiveMutationProtease NexinsCerebellar AtaxiaTauopathiesGenotypeFrontotemporal Lobar DegenerationLewy BodiesAmnesiaGenetic Predisposition to DiseaseThiazolesDown SyndromeSeverity of Illness IndexCerebral VentriclesAmyloidogenic ProteinsUveal DiseasesProdromal SymptomsPhenylcarbamatesFrontal LobeIndansReference ValuesNootropic AgentsNerve Fibers, MyelinatedBrain Diseases