GRATING VISIBILITY AS A FUNCTION OF ORIENTATION AND RETINAL ECCENTRICITY
GRATING VISIBILITY AS A FUNCTION OF ORIENTATION AND RETINAL ECCENTRICITY
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DOI：
10.1016/0042-6989(75)90213-8
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发表时间：
1975-01-01
期刊：
影响因子：
1.8
通讯作者：
WATKINS, DW
中科院分区：
文献类型：
--
作者：
BERKLEY, MA;KITTERLE, F;WATKINS, DW
在几种视网膜偏心率下，用高对比度光栅在三个方向上测量敏锐度。倾斜取向光栅的敏锐度比垂直或水平光栅差，但这种差异消失偏心观看。受试者之间精确的消失轨迹从8°到18°不等。可以利用目标对比度降低来实现取向效应的类似降低，这支持取向偏好（倾斜效应）的大小与参与光栅检测的感受野的大小成反比的观点。
Acuity was measured with high contrast gratings in three orientations at several retinal eccentricities. Acuity for obliquely oriented gratings was poorer than for vertical or horizontal gratings but this difference disappeared with eccentric viewing. The precise locus of disappearance varied from 8° to 18° between subjects. A similar reduction of the orientation effect can be achieved with target contrast reduction which supports the view that the magnitude of the orientation preference (oblique effect) is inversely related to the size of receptive fields participating in detection of the grating.