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Accuracy and Precision of Binocular 3-D Motion Perception.

Harris, JM and Dean, PJA (2003) Accuracy and Precision of Binocular 3-D Motion Perception. Journal of Experimental Psychology: Human Perception and Performance, 29 (5). pp. 869-881.

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In principle, information for 3-D motion perception is provided by the differences in position and motion between left- and right-eye images of the world. It is known that observers can precisely judge between different 3-D motion trajectories, but the accuracy of binocular 3-D motion perception has not been studied. The authors measured the accuracy of 3-D motion perception. In 4 different tasks, observers were inaccurate, overestimating trajectory angle, despite consistently choosing similar angles (high precision). Errors did not vary consistently with target distance, as would be expected had inaccuracy been due to misestimates of viewing distance. Observers appeared to rely strongly on the lateral position of the target, almost to the exclusion of the use of depth information. For the present tasks, these data suggest that neither an accurate estimate of 3-D motion direction nor one of passing distance can be obtained using only binocular cues to motion in depth.

Item Type: Article
Divisions : Surrey research (other units)
Authors :
Harris, JM
Date : 2003
DOI : 10.1037/0096-1523.29.5.869
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 09:16
Last Modified : 24 Jan 2020 16:26

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