TEMPORAL FREQUENCY-DEPENDENT ADAPTATION AT THE LEVEL OF THE OUTER RETINA IN HUMANS

被引：38

作者：

SEIPLE, W ^{[1
]}

HOLOPIGIAN, K ^{[1
]}

GREENSTEIN, V ^{[1
]}

HOOD, DC ^{[1
]}

机构：

[1] COLUMBIA UNIV,DEPT PSYCHOL,NEW YORK,NY 10027

来源：

VISION RESEARCH | 1992年 / 32卷 / 11期

关键词：

FOCAL ELECTRORETINOGRAM; TEMPORAL FREQUENCY; ADAPTATION;

D O I：

10.1016/0042-6989(92)90065-Q

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

The focal electroretinogram (FERG) was used to examine temporal frequency tuning at the outer retinal level in humans by measuring temporal modulation thresholds. Changes in FERG thresholds as a function of ambient light level were compared to temporal modulation thresholds obtained psychophysically using the same stimuli. At lower temporal frequencies, both FERG and psychophysical thresholds changed sensitivity proportional to the mean illuminance level. At higher illuminance levels, both threshold measures were relatively independent of illuminance. The comparison of the FERG to the behavioral data suggest that most of the adaptation-dependent changes in temporal sensitivity in humans occur at the level of the photoreceptor complex

引用

页码：2043 / 2048

页数：6

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