DementiaLewy BodiesLewy Body DiseaseDementia, Vascularalpha-SynucleinAlzheimer DiseaseParkinson DiseaseSynucleinsDementia, Multi-InfarctNeuropsychological TestsCognition DisordersAIDS Dementia ComplexBrainbeta-SynucleinNeurofibrillary TanglesHallucinationsCaregiversInclusion BodiesAtrophyAutopsyMild Cognitive ImpairmentCognitiontau ProteinsCholinesterase InhibitorsNeurodegenerative DiseasesNursing HomesPick Disease of the BrainFrontotemporal Lobar DegenerationApolipoprotein E4NeurofibrilsLongitudinal StudiesSupranuclear Palsy, ProgressiveExtrapyramidal TractsMemory DisordersPlaque, AmyloidParkinsonian DisordersMagnetic Resonance ImagingMultiple System AtrophyAgingGeriatric AssessmentSeverity of Illness IndexTemporal LobeSubstantia NigraNerve DegenerationPsychomotor AgitationAmyloid beta-PeptidesPsychiatric Status Rating ScalesCohort StudiesDisease ProgressionHomes for the AgedCerebral CortexRisk FactorsNootropic AgentsFrontal LobeOlfaction DisordersBehavioral SymptomsNerve Tissue ProteinsAge of OnsetPhenylcarbamatesWandering BehaviorCapgras SyndromeInstitutionalizationNeuronsActivities of Daily LivingDeliriumIndansAgnosiaApolipoproteins EGlucosylceramidaseFollow-Up StudiesResidential FacilitiesAge FactorsREM Sleep Behavior DisorderProspective StudiesMental CompetencyTropanesAphasia, Primary ProgressiveAntiparkinson AgentsCase-Control StudiesSubstantia InnominataPrevalenceAmyloidGeriatric NursingDelusionsDelirium, Dementia, Amnestic, Cognitive DisordersPositron-Emission TomographyMutationReproducibility of Resultsgamma-SynucleinIncidenceTomography, Emission-Computed, Single-PhotonAniline CompoundsComorbidityUbiquitinCerebrovascular DisordersBrief Psychiatric Rating ScaleApathyHippocampusMemoryPredictive Value of Tests