Visual form perception: tachistoscopic experiment.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001288:Attention; D001927:Brain Diseases / Q000175:diagnosis; D003142:Communication; D004192:Discrimination, Psychological; D004292:Dominance, Cerebral; D005556:Form Perception; D006801:Humans; D007088:Illusions; D007405:Intervertebral Disc Displacement; D008568:Memory; D008875:Middle Aged; D009949:Orientation; D011581:Psychological Tests; D013647:Task Performance and Analysis; D014794:Visual Fields