Motion at isoluminance: discrimination/detection ratios for moving isoluminant gratings.

@article{Lindsey1990MotionAI,
  title={Motion at isoluminance: discrimination/detection ratios for moving isoluminant gratings.},
  author={Delwin T. Lindsey and Davida Y. Teller},
  journal={Vision research},
  year={1990},
  volume={30 11},
  pages={1751-61}
}
Subjects viewed a 2.3 x 2.3 deg patch of a moving 1.3 c/deg, 3.75 Hz sinusoidal grating, centered 1.8 deg from fixation. Two-alternative forced-choice contrast thresholds were measured along the luminance axis and 10 chromatic axes at isoluminance for three tasks: detection (D), form discrimination (F), and discrimination of upward from downward motion (M). F/D threshold ratios averaged approx. 1:1 on all axes. M/D ratios were approx. 1:1 on the luminance axis, but varied from 3:1 to… CONTINUE READING

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