Autonomic Nervous SystemGalvanic Skin ResponseDepersonalizationAutonomic PathwaysHeart RateImagery (Psychotherapy)ArousalAutonomic Nervous System DiseasesBlood PressureEmotionsVagus NerveFacial ExpressionSympathetic Nervous SystemParasympathetic Nervous SystemBaroreflexStress, PsychologicalFearCorticotropin-Releasing HormoneAmygdalaEpinephrineReflexPostureBody TemperatureBehavior, AnimalNorepinephrineAnalysis of VarianceRats, Sprague-DawleyHemodynamicsRats, WistarElectric StimulationTime Factors