DementiaDementia, VascularAlzheimer DiseaseDementia, Multi-InfarctLewy Body DiseaseAIDS Dementia ComplexCognition DisordersNeuropsychological TestsCaregiversNursing HomesBrainCognitionGeriatric AssessmentMild Cognitive ImpairmentAtrophyRisk FactorsLongitudinal StudiesHomes for the AgedAgingParkinson DiseaseLewy BodiesMemory Disorderstau ProteinsActivities of Daily LivingApolipoprotein E4Neurofibrillary TanglesFrontotemporal Lobar DegenerationMagnetic Resonance ImagingPrevalencePick Disease of the BrainPsychiatric Status Rating ScalesCohort StudiesInstitutionalizationPsychomotor AgitationSeverity of Illness IndexResidential FacilitiesCross-Sectional StudiesQuestionnairesBehavioral SymptomsDisease ProgressionFollow-Up StudiesIncidenceCholinesterase InhibitorsWandering BehaviorProspective StudiesTemporal LobeMental CompetencyAutopsyHealth Services for the AgedAge of OnsetNootropic AgentsGeriatric NursingAmyloid beta-PeptidesEducational StatusPlaque, AmyloidGreat BritainFrontal LobeUnited StatesDepressionReproducibility of ResultsNeurodegenerative DiseasesSex FactorsCase-Control StudiesAphasia, Primary ProgressiveMental DisordersDeliriumQuality of LifeComorbidityFrail ElderlyBehaviorHallucinationsCerebrovascular DisordersAge FactorsEnglandSupranuclear Palsy, ProgressiveDelirium, Dementia, Amnestic, Cognitive DisordersMemorySocioeconomic FactorsPsychometricsResidence CharacteristicsHome NursingBrief Psychiatric Rating ScaleInterviews as TopicTime FactorsAge DistributionPredictive Value of TestsAssisted Living FacilitiesAphasiaCerebral CortexAnalysis of VarianceApathyRetrospective StudiesSex DistributionApolipoproteins EAccidental FallsChinaMemantineLogistic ModelsPsychological TestsGeriatrics