MassagePressure UlcerDermatologic Surgical ProceduresNociceptive PainHeart MassagePhotoacoustic TechniquesSoft Tissue InjuriesPhysical StimulationSpinothalamic TractsPain ThresholdInfrared RaysNociceptorsButtocksSpectroscopy, Near-InfraredAromatherapyMicroscopy, Fluorescence, MultiphotonHyperalgesiaPressureMechanoreceptorsPain MeasurementSkinRelaxation TherapyMolecular ImagingSensory Receptor CellsTherapeutic TouchMuscle, SkeletalCarotid SinusPhantoms, ImagingPainHot TemperatureStress, MechanicalComplementary TherapiesContrast MediaSyncopeNerve FibersMagnetic Resonance ImagingDeep Brain StimulationSexologyNeurons, AfferentNeural ConductionRats, Sprague-DawleyAcupressure