The differential effects of brief exposures and surrounding contours on direct and indirect tilt illusions.

@article{Wenderoth1988TheDE,
  title={The differential effects of brief exposures and surrounding contours on direct and indirect tilt illusions.},
  author={Peter Wenderoth and S D Johnstone},
  journal={Perception},
  year={1988},
  volume={17 2},
  pages={165-76}
}
Four experiments in which logarithmic intervals between 25 and 1600 ms were used for stimulus duration in tests for the tilt illusion are reported. It is demonstrated that the direct and the indirect tilt illusions both increase in magnitude inversely with length of stimulus presentation. The data suggest that whereas the direct effect peaks with a value of about +7 degrees at the shortest flash duration used (25 ms), peak indirect effects (of about +2 degrees) do not occur at this duration. In… CONTINUE READING

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