EntityQ2363472· pop 23· linked from 132 articlesEbbinghaus illusionSign in to saveoptical illusionConnectionsdigital object identifierEntityInternational Standard Serial NumberEntityillusionEntityQ180686Entityoptical illusionEntityQ229883Entityop artEntityHermann EbbinghausEntitytrompe-l'œilEntityambigramEntityPenrose triangleEntityQ22908627EntityEdward B. TitchenerEntityPenrose stairsEntitygravity hillEntityvisual cortexEntityHandle SystemEntityAmes roomEntityconfoundingEntityNecker cubeEntityCategoriesOptical illusions