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Optimal combination of form and motion cues in human heading perception

Niehorster, Diederick C LU ; Cheng, Joseph C. K. and Li, L. (2010) In Journal of Vision 10(11).
Abstract
We examined what role motion-streak-like form information plays in heading perception. We presented observers with an integrated form and motion display in which random-dot pairs in a 3D cloud were oriented toward one direction on the screen (the form FOE) to form a radial Glass pattern while moving in a different direction in depth (the motion FOE). Observers' heading judgments were strongly biased toward the form FOE direction (weight: 0.78), and this bias decreased with the reduction of the salience of the global form structure in the Glass pattern. At the local level, the orientation of dot pairs in the Glass pattern can affect their perceived motion direction, leading to a shift of the perceived motion FOE direction in optic flow.... (More)
We examined what role motion-streak-like form information plays in heading perception. We presented observers with an integrated form and motion display in which random-dot pairs in a 3D cloud were oriented toward one direction on the screen (the form FOE) to form a radial Glass pattern while moving in a different direction in depth (the motion FOE). Observers' heading judgments were strongly biased toward the form FOE direction (weight: 0.78), and this bias decreased with the reduction of the salience of the global form structure in the Glass pattern. At the local level, the orientation of dot pairs in the Glass pattern can affect their perceived motion direction, leading to a shift of the perceived motion FOE direction in optic flow. However, this shift accounted for about half of the total bias. Using the measurements of the shifted motion FOE and the perceived form FOE directions, we found that at the global level, an optimal combination of these two cues could accurately predict the heading bias observed for the integrated display. Our findings support the claim that motion streaks are effective cues for self-motion perception, and humans make optimal use of both form and motion cues for heading perception. (Less)
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author
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Vision
volume
10
issue
11
pages
15 pages
publisher
Association for Research in Vision and Ophthalmology
external identifiers
  • scopus:78449257815
ISSN
1534-7362
DOI
10.1167/10.11.20
language
English
LU publication?
no
id
835a29ac-10b9-4b9d-9ecf-a9381551681a (old id 8310314)
alternative location
http://jov.arvojournals.org/article.aspx?articleid=2191717
date added to LUP
2016-02-09 08:13:59
date last changed
2018-05-29 12:24:45
@article{835a29ac-10b9-4b9d-9ecf-a9381551681a,
  abstract     = {We examined what role motion-streak-like form information plays in heading perception. We presented observers with an integrated form and motion display in which random-dot pairs in a 3D cloud were oriented toward one direction on the screen (the form FOE) to form a radial Glass pattern while moving in a different direction in depth (the motion FOE). Observers' heading judgments were strongly biased toward the form FOE direction (weight: 0.78), and this bias decreased with the reduction of the salience of the global form structure in the Glass pattern. At the local level, the orientation of dot pairs in the Glass pattern can affect their perceived motion direction, leading to a shift of the perceived motion FOE direction in optic flow. However, this shift accounted for about half of the total bias. Using the measurements of the shifted motion FOE and the perceived form FOE directions, we found that at the global level, an optimal combination of these two cues could accurately predict the heading bias observed for the integrated display. Our findings support the claim that motion streaks are effective cues for self-motion perception, and humans make optimal use of both form and motion cues for heading perception.},
  articleno    = {20},
  author       = {Niehorster, Diederick C and Cheng, Joseph C. K. and Li, L.},
  issn         = {1534-7362},
  language     = {eng},
  number       = {11},
  pages        = {15},
  publisher    = {Association for Research in Vision and Ophthalmology},
  series       = {Journal of Vision},
  title        = {Optimal combination of form and motion cues in human heading perception},
  url          = {http://dx.doi.org/10.1167/10.11.20},
  volume       = {10},
  year         = {2010},
}