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Apparent extended body motions in depthFive experiments were designed to investigate the influence of three-dimensional (3-D) orientation change on apparent motion. Projections of an orientation-specific 3-D object were sequentially flashed in different locations and at different orientations. Such an occurrence could be resolved by perceiving a rotational motion in depth around an axis external to the object. Consistent with this proposal, it was found that observers perceived curved paths in depth. Although the magnitude of perceived trajectory curvature often fell short of that required for rotational motions in depth (3-D circularity), judgments of the slant of the virtual plane on which apparent motions occurred were quite close to the predictions of a model that proposes circular paths in depth.
Document ID
19950028523
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hecht, Heiko
(Univ. of Virginia, Charlottesville, VA United States)
Proffitt, Dennis R.
(Univ. of Virginia, Charlottesville, VA United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1991
Publication Information
Publication: Journal of Experimental Psychology: Human Perception and Performance
Volume: 17
Issue: 4
ISSN: 0096-1523
Subject Category
Behavioral Sciences
Accession Number
95A60122
Funding Number(s)
CONTRACT_GRANT: NCA2-468
CONTRACT_GRANT: AF0SR-87-0238
CONTRACT_GRANT: NCA2-255
Distribution Limits
Public
Copyright
Other

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