Gestalt TheoryBender-Gestalt TestGestalt TherapyPerceptual ClosureKrypton RadioisotopesFaciesVisual PerceptionPhotic StimulationCraniofacial AbnormalitiesPattern Recognition, VisualForm PerceptionConcept FormationOptical IllusionsPsychophysicsVentilation-Perfusion RatioAbnormalities, MultipleSyndrome