Visually perceiving distance: A comment on Shebilske, Karmiohl and Proffitt (1983).

Number 452
Year 1984
Drawer 8
Entry Date 11/19/1999
Authors Turvey, M. T., & Solomon, J.
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Publication Journal of Experimental Psychology: Human Perception and Performance, 10, 449-454.
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Abstract W. L. Shebilske et al interpreted their data on the visual perception of distance as showing that (a) the reference tonus level of the extraocular muscles controlling vergence is affected by everyday conditions of close viewing, and (b) this naturally induced phoria affects the visual perception of distance under natural viewing conditions. It is noted that these interpretations do not fully concur with the data presented, and a number of confoundings are identified that reduce the likelihood that the report inaccuracies in distance judgments were due to variations in efference.
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