@article{ref1,
title="Apparent size and visual accommodation under day and night conditions",
journal="Proceedings of the Human Factors and Ergonomic Society annual meeting",
year="1979",
author="Simonelli, Nicholas M.",
volume="23",
number="1",
pages="374-378",
abstract="Six subjects on a building roof viewed the outside terrain through a projection device which superposed a full horizon moon on that view. Subjects judged the size of the moon in various scenery configurations by adjusting a comparison disc while accommodation measurements were taken using a laser optometer. Results showed a strong correlation between mean accommodative states and size judgments during the day and a weaker correlation at night. Accommodation responses were not identical to all scenes and as accommodation shifted inward, the judged size of the moon decreased. &quot;Night myopia&quot; was also clearly evident. The relatively nearer accommodation responses and smaller size judgments of the isolated zenith-type moon as compared to the horizon moon suggests that the moon illusion is mediated by the accommodation mechanism. The results are discussed in connection with a similar study by Iavecchia, Iavecchia and Roscoe, and differences in the mean &quot;dark focus&quot; of accommodation between the two groups are related to the findings.<p /><p>Language: en</p>",
language="en",
issn="2169-5067",
doi="10.1177/107118137902300195",
url="http://dx.doi.org/10.1177/107118137902300195"
}