Todorovic (2008) reported that there are systematic errors in the perception of 3-D space whenviewing 2-D linear perspective drawings depending on the observer’s vantage point. BecauseTodorovic’s findings were restricted to the horizontal plane, the current study was designed todetermine whether the magnitude of these errors would be similar in the vertical plane.Participants viewed a 2D image containing rows of columns aligned on parallel converging linesreceding to a vanishing point. They were asked to judge where in the physical room the nextcolumn should be placed. The results support Todorovic (2008) in that systematic deviations inthe spatial judgments depended on vantage point for both the horizontal and vertical planes.However, the pattern of deviation differed between the two planes. While judgments in bothplanes failed to compensate adequately for the vantage point shift, the vertical plane inducedgreater distortions of the stimulus image itself within each vantage point.
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