Visual disappearances caused by form similarity.
Three forms were scaled for similarity by two groups of observers, who used different methods. A third group reported the duration of disappearances observed for each pair of forms. Duration of total disappearance increased with an increase in form-pair similarity. Neural overlap can explain the similarity judgments; cell fatigue, the disappearances.
D000293:Adolescent; D000328:Adult; D005133:Eye Movements; D005221:Fatigue; D005556:Form Perception; D006801:Humans; D012160:Retina / Q000502:physiology*