DementiaDementia, VascularAlzheimer DiseaseDementia, Multi-InfarctLewy Body DiseaseAIDS Dementia ComplexCognition DisordersNeuropsychological TestsCaregiversBrainMild Cognitive ImpairmentAtrophyRisk FactorsNursing HomesCognitionParkinson DiseaseFrontotemporal Lobar DegenerationLewy Bodiestau ProteinsMagnetic Resonance ImagingLongitudinal StudiesAgingNeurofibrillary TanglesSeverity of Illness IndexApolipoprotein E4Geriatric AssessmentMemory DisordersPick Disease of the BrainCohort StudiesIncidenceRetrospective StudiesPrevalencePsychomotor AgitationAutopsyProspective StudiesHomes for the AgedDisease ProgressionFollow-Up StudiesPsychiatric Status Rating ScalesAge FactorsBehavioral SymptomsAge of OnsetCholinesterase InhibitorsWandering BehaviorAmyloid beta-PeptidesMutationActivities of Daily LivingTemporal LobeInstitutionalizationPlaque, AmyloidNootropic AgentsDNA Repeat ExpansionResidential FacilitiesCase-Control StudiesFrontal LobeTime FactorsTreatment OutcomeCerebrovascular DisordersMental CompetencyCross-Sectional StudiesAphasia, Primary ProgressiveNeurodegenerative DiseasesReproducibility of ResultsAge DistributionComorbidityGeriatric NursingSupranuclear Palsy, ProgressivePredictive Value of TestsDeliriumPedigreeDelirium, Dementia, Amnestic, Cognitive DisordersUnited StatesGenotypeSensitivity and SpecificityDisease Models, AnimalBrief Psychiatric Rating ScaleApathyCause of DeathInfant, NewbornMemoryApolipoproteins ECerebral CortexHallucinationsAssisted Living FacilitiesEducational StatusMemantineAphasiaBehaviorEarly DiagnosisSex FactorsPhenylcarbamates