Does Flattened Sky Dome Reduces Perceived Moon Size

Details Does Flattened Sky Dome Reduces Perceived Moon Size Does Flattened Sky Dome Reduces Perceived Moon Size

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009pobeo..86..385t&link_type=abstract

Publications of the Astronomical Observatory of Belgrade, vol. 86, pp. 385-389

Astronomy and Astrophysics

Astronomy

Scientific paper

The aim of this study was to examine the Flattened sky dome model as an explanation of the Moon illusion. Two experiments were done, in a dark room, in which distribution of depth cues is the same towards horizon as towards zenith. In the first experiment 14 participants had the task to equalize the perceived distances of three stimuli in three directions (horizontal, tilted 45 degrees and vertical). In the second experiment 16 participants had the task to estimate the perceived sizes of three stimuli in the same three directions. For distance estimates we found differences among three directions in a way, that as the head tilts upwards, the perceived space is being elongated, which is the opposite to flattened sky dome. For size estimates we found no difference among the three directions.

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