FearConditioning, ClassicalFreezing Reaction, CatalepticConditioning (Psychology)AmygdalaExtinction, PsychologicalElectroshockMemoryGalvanic Skin ResponseStartle ReactionAvoidance LearningAssociation LearningQuestionnairesAnxietyPhobic DisordersBehavior, AnimalAcoustic StimulationAccidental FallsCuesAnalysis of VarianceDental AnxietyCross-Sectional StudiesRats, Long-EvansRisk FactorsEmotionsAttitude to HealthGreat BritainLearningPrevalenceFacial ExpressionHealthy People ProgramsTime FactorsCycloserineGeriatric AssessmentInterviews as TopicActivities of Daily LivingHippocampusStereotypingPatient Acceptance of Health CareSocioeconomic FactorsHealth Services for the AgedDesensitization, PsychologicEnglandQualitative Research