1948
DOI: 10.1037/h0054067
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Factors influencing thresholds for monocular movement parallax.

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Cited by 55 publications
(40 citation statements)
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“…This is particularly a danger in threshold studies, such as the classic study by Graham et al (1948), in which observers merely have to discriminate between motion conditions. Estimated depth in lit-foreground conditions was greater under dynamic-binocular conditions than under either static-binocular or dynamic-monocular conditions, suggesting that motion parallax contributed to depth perception even when stereopsis was present with a summation of their effectiveness.…”
Section: Discussionmentioning
confidence: 99%
“…This is particularly a danger in threshold studies, such as the classic study by Graham et al (1948), in which observers merely have to discriminate between motion conditions. Estimated depth in lit-foreground conditions was greater under dynamic-binocular conditions than under either static-binocular or dynamic-monocular conditions, suggesting that motion parallax contributed to depth perception even when stereopsis was present with a summation of their effectiveness.…”
Section: Discussionmentioning
confidence: 99%
“…If something like man's ability to detect small relative differences in stimulus velocity (Graham, Baker, Hecht & Lloyd, 1948;Hick, 1950;Notterman & Page, 1957) holds for the cat then this discriminative ability is likely to be reflected in the character of the velocity tuning curves of cells in the striate cortex. From quantitatively measured tuning curves in this and in earlier studies (Pettigrew et al 1968;Movshon, 1975) it appears that the responses of all striate cells in the cat show some degree of velocity dependence and that many respond only to a restricted range of stimulus velocities.…”
Section: Coding Of Velocity In Striate Neurosesmentioning
confidence: 99%
“…When only one eye with a fixed head was used, the error was very large. Graham, Baker, Hecht, and Lloyd (1948;see also Graham, 1951) obtained the threshold for separation in depth of two needles pointing toward one another, as seen on a uniform field through a window. The needles moved from side to side on a common carriage.…”
mentioning
confidence: 98%