Behavioral SymptomsWandering BehaviorPsychomotor AgitationBiological PsychiatryDementiaMental DisordersBehaviorBehavior, AnimalAutistic DisorderChild Development Disorders, PervasiveAttention Deficit Disorder with HyperactivityFrontotemporal DementiaCaregiversNeuropsychological TestsDepressionPsychiatric Status Rating ScalesCognition DisordersAntipsychotic AgentsStress, PsychologicalAlzheimer DiseaseBipolar DisorderBrainSeverity of Illness IndexDisease Models, AnimalAnxiety DisordersMood DisordersQuality of LifeDiagnostic and Statistical Manual of Mental DisordersDepressive DisorderDepressive Disorder, MajorStress Disorders, Post-TraumaticMotor ActivityObsessive-Compulsive DisorderSubstance-Related DisordersPsychotic DisordersQuestionnairesAnxietyBehavioral SciencesBehavioral MedicinePhobic DisordersTime FactorsGenetics, BehavioralAnalysis of VarianceBehavioral ResearchConduct DisorderTreatment OutcomePrevalence