双标准阈值技术：空间和时间机制分离的证据？

Two-criterion threshold techniques: evidence for separate spatial and temporal mechanisms?

作者信息

Panish S C, Swift D J, Smith R A

出版信息

Vision Res. 1983;23(12):1519-25. doi: 10.1016/0042-6989(83)90164-5.

Abstract

Contrast thresholds were determined for counterphase flickering and drifting spatial gratings using pattern and flicker/motion criteria. In contrast to previous reports, the two criteria yielded contrast sensitivity functions (CSF) of similar form in the counterphase condition. However, moving gratings yielded CSF's of different form for the two criteria. These differences are probably due to eye movements.

摘要

使用图案和闪烁/运动标准，确定了反相闪烁和漂移空间光栅的对比度阈值。与之前的报告不同，在反相条件下，这两个标准产生了形式相似的对比度敏感度函数（CSF）。然而，对于移动光栅，这两个标准产生的CSF形式不同。这些差异可能是由于眼球运动造成的。