Rentschler I, Hilz R
Exp Brain Res. 1979 Sep;37(1):187-91. doi: 10.1007/BF01474265.
In normal observers preadaptation to a parallel grating increases the contrast threshold for a line whereas a perpendicular grating has no effect. Such orientation selectivity was not found in the amblyopic eye of two out of five squinters. Only a weak after-effect produced with a grating parallel to the line was obtained in the good eye of four of the amblyopes while all of them show an abnormal threshold reduction following adaptation to a perpendicular grating. This suggests a relationship between abnormal binocular interaction during visual development and the organization of orientational mechanisms but does not explain the loss of visual acuity in amblyopia.
在正常观察者中，预先适应平行光栅会提高对线条的对比度阈值，而垂直光栅则没有影响。在五名斜视患者中的两名弱视眼中未发现这种方向选择性。在四名弱视患者的好眼中，仅在与线条平行的光栅作用下产生了微弱的后效应，而他们所有人在适应垂直光栅后均表现出异常的阈值降低。这表明视觉发育过程中异常的双眼相互作用与定向机制的组织之间存在关联，但并未解释弱视中视力丧失的原因。
