Larsen J D, Garn N K
John Carroll University, University Heights, OH 44118.
Percept Mot Skills. 1988 Dec;67(3):831-4. doi: 10.2466/pms.1988.67.3.831.
The interference of the wings of the wings-in part of the Mueller-Lyer figure was examined for the version of the illusion in which one part of the figure is placed above the other. Wings were removed in pairs from either above or below the shaft of one of the two parts of the figure. Subjects indicated the apparent difference between the lengths of the shafts of the two parts of the figure. Removal of the wings between the shafts of the wings-in part of the figure reduced the amount of the illusion more than removal of the wings from outside the shafts. Removing wings from the wings-out part of the figure reduced the amount of illusion, but it made no difference whether the wing removal occurred between or outside the shafts.
针对缪勒 - 莱尔图形中一部分置于另一部分上方这种形式的错觉，研究了翅膀部分（即缪勒 - 莱尔图形中“翅膀”部分）的干扰情况。从图形两部分之一的竖线的上方或下方成对移除翅膀。受试者指出图形两部分竖线长度的明显差异。移除图形中“翅膀”部分竖线之间的翅膀，比对竖线外部翅膀的移除，能更大程度地减少错觉量。从图形“翅膀外展”部分移除翅膀会减少错觉量，但无论在竖线之间还是竖线外部移除翅膀，效果并无差异。
