The overestimation of vertical distance and slope and its role in the moon illusion

@article{Kammann1967TheOO,
  title={The overestimation of vertical distance and slope and its role in the moon illusion},
  author={R. Kammann},
  journal={Perception & Psychophysics},
  year={1967},
  volume={2},
  pages={585-589}
}
  • R. Kammann
  • Published 1967
  • Mathematics
  • Perception & Psychophysics
  • Six experiments were conducted to test the hypothesis that overestimation of vertical distance is a pervasive phenomenon. The experiments involved judgments of: (a) vertical distance looking upward; (b) vertical distance looking downward; (c) the slope of a real hill; (d) the recalled slopes of streets; (e) the magnitudes of angles drawn on paper; (f) the distances to afterimages projected into the sky. The results showed that a very strong illusion of overestimation of both vertical distance… CONTINUE READING
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