Facilitation and masking of briefly presented gratings: Time-course and contrast dependence

@article{Georgeson1987FacilitationAM,
  title={Facilitation and masking of briefly presented gratings: Time-course and contrast dependence},
  author={Mark A. Georgeson and J M Georgeson},
  journal={Vision Research},
  year={1987},
  volume={27},
  pages={369-379}
}
We measured two-alternative forced-choice contrast thresholds for briefly presented sinusoidal gratings in the presence of superimposed masking gratings of various contrasts, and at a range of onset asynchronies. Facilitation (lower thresholds) occurred when the mask was simultaneous, in-phase, and near-threshold, but was abolished at asynchronies of 50 msec or more and by presenting the test grating as a brief contrast reversal instead of a pulse. We argue that facilitation requires temporal… CONTINUE READING

From This Paper

Topics from this paper.

Citations

Publications citing this paper.
Showing 1-10 of 49 extracted citations

Similar Papers

Loading similar papers…