对倾斜的适应并非由眼肌增强作用产生。

Adaptation to tilt is not produced by eye-muscle potentiation.

作者信息

Mikaelian H H, Mikaelian D M, Cameron E L

机构信息

Psychology Department, University of New Brunswick, Frederiction, Canada.

出版信息

Vision Res. 1990;30(5):779-83. doi: 10.1016/0042-6989(90)90103-r.

DOI:10.1016/0042-6989(90)90103-r

PMID:2378070

Abstract

The role of eye-muscle potentiation in adaptation to prismatic tilt was evaluated by assessing the presence of cyclotorsion induced by prolonged wearing of tilting prisms. Fundus photographs, containing the retinal image of the test line adjusted to the subjective vertical, were obtained before and after prism viewing that induced a 6 degrees aftereffect. The angular separation of the retinal images of the test line between pre- and post-prism photographs matched, in all cases, the difference in orientation between pre- and post-prism adjustment of the test line to the vertical. The data, therefore, clearly show that the eye is in exactly the same orbital position before and after substantial tilt aftereffects are induced. These results argue against the eye-muscle potentiation explanation of tilt aftereffects, that is, the explanation which says that tilt aftereffects are the result of prism induced changes in cyclotorsion.

摘要

通过评估长时间佩戴倾斜棱镜所诱发的眼球旋转来评价眼肌增强在适应棱镜倾斜中的作用。在诱发6度后效的棱镜观察前后，获取了包含根据主观垂直方向调整的测试线视网膜图像的眼底照片。在所有情况下，棱镜观察前后测试线视网膜图像的角间距与测试线在垂直方向上棱镜观察前后调整的方向差异相匹配。因此，数据清楚地表明，在诱发明显的倾斜后效前后，眼睛处于完全相同的眼眶位置。这些结果与倾斜后效的眼肌增强解释相悖，也就是说，该解释认为倾斜后效是棱镜诱发的眼球旋转变化的结果。