Document Detail

Object-centered reference frames in depth as revealed by induced motion.
MedLine Citation:
PMID:  24618108     Owner:  NLM     Status:  In-Data-Review    
An object-centric reference frame is a spatial representation in which objects or their parts are coded relative to others. The existence of object-centric representations is supported by the phenomenon of induced motion, in which the motion of an inducer frame in a particular direction induces motion in the opposite direction in a target dot. We report on an experiment made with an induced motion display where a degree of slant is imparted to the inducer frame using either perspective or binocular disparity depth cues. Critically, the inducer frame oscillates perpendicularly to the line of sight, rather than moving in depth. Participants matched the perceived induced motion of the target dot in depth using a 3D rotatable rod. Although the frame did not move in depth, we found that subjects perceived the dot as moving in depth, either along the slanted frame or against it, when depth was given by perspective and disparity, respectively. The presence of induced motion is thus not only due to the competition among populations of planar motion filters, but rather incorporates 3D scene constraints. We also discuss this finding in the context of the uncertainty related to various depth cues, and to the locality of representation of reference frames.
Jasmin Léveillé; Emma Myers; Arash Yazdanbakhsh
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Publication Detail:
Type:  Journal Article     Date:  2014-03-11
Journal Detail:
Title:  Journal of vision     Volume:  14     ISSN:  1534-7362     ISO Abbreviation:  J Vis     Publication Date:  2014  
Date Detail:
Created Date:  2014-03-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101147197     Medline TA:  J Vis     Country:  United States    
Other Details:
Languages:  eng     Pagination:  -     Citation Subset:  IM    
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