Heading perception from optic flow in the presence of biological motion
© 2019 Association for Research in Vision and Ophthalmology Inc. We investigated whether biological motion biases heading estimation from optic flow in a similar manner to nonbiological moving objects. In two experiments, observers judged their heading from displays depicting linear translation...
| Main Authors: | , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/80925 |
| _version_ | 1848764290199191552 |
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| author | Riddell, Hugh Li, L. Lappe, M. |
| author_facet | Riddell, Hugh Li, L. Lappe, M. |
| author_sort | Riddell, Hugh |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2019 Association for Research in Vision and Ophthalmology Inc.
We investigated whether biological motion biases heading estimation from optic flow in a similar manner to nonbiological moving objects. In two experiments, observers judged their heading from displays depicting linear translation over a random-dot ground with normal point light walkers, spatially scrambled point light walkers, or laterally moving objects composed of random dots. In Experiment 1, we found that both types of walkers biased heading estimates similarly to moving objects when they obscured the focus of expansion of the background flow. In Experiment 2, we also found that walkers biased heading estimates when they did not obscure the focus of expansion. These results show that both regular and scrambled biological motion affect heading estimation in a similar manner to simple moving objects, and suggest that biological motion is not preferentially processed for the perception of selfmotion. |
| first_indexed | 2025-11-14T11:17:00Z |
| format | Journal Article |
| id | curtin-20.500.11937-80925 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | eng |
| last_indexed | 2025-11-14T11:17:00Z |
| publishDate | 2019 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-809252021-01-05T08:07:07Z Heading perception from optic flow in the presence of biological motion Riddell, Hugh Li, L. Lappe, M. Adult Analysis of Variance Bayes Theorem Behavior Bias Female Humans Male Motion Motion Perception Optic Flow Perceptual Distortion Visual Fields Walking Young Adult © 2019 Association for Research in Vision and Ophthalmology Inc. We investigated whether biological motion biases heading estimation from optic flow in a similar manner to nonbiological moving objects. In two experiments, observers judged their heading from displays depicting linear translation over a random-dot ground with normal point light walkers, spatially scrambled point light walkers, or laterally moving objects composed of random dots. In Experiment 1, we found that both types of walkers biased heading estimates similarly to moving objects when they obscured the focus of expansion of the background flow. In Experiment 2, we also found that walkers biased heading estimates when they did not obscure the focus of expansion. These results show that both regular and scrambled biological motion affect heading estimation in a similar manner to simple moving objects, and suggest that biological motion is not preferentially processed for the perception of selfmotion. 2019 Journal Article http://hdl.handle.net/20.500.11937/80925 10.1167/19.14.25 eng http://creativecommons.org/licenses/by/4.0/ fulltext |
| spellingShingle | Adult Analysis of Variance Bayes Theorem Behavior Bias Female Humans Male Motion Motion Perception Optic Flow Perceptual Distortion Visual Fields Walking Young Adult Riddell, Hugh Li, L. Lappe, M. Heading perception from optic flow in the presence of biological motion |
| title | Heading perception from optic flow in the presence of biological motion |
| title_full | Heading perception from optic flow in the presence of biological motion |
| title_fullStr | Heading perception from optic flow in the presence of biological motion |
| title_full_unstemmed | Heading perception from optic flow in the presence of biological motion |
| title_short | Heading perception from optic flow in the presence of biological motion |
| title_sort | heading perception from optic flow in the presence of biological motion |
| topic | Adult Analysis of Variance Bayes Theorem Behavior Bias Female Humans Male Motion Motion Perception Optic Flow Perceptual Distortion Visual Fields Walking Young Adult |
| url | http://hdl.handle.net/20.500.11937/80925 |