Trial-by-trial feedback fails to improve the consideration of acceleration in visual time-to-collision estimation.
When judging the time-to-collision (TTC) of visually presented accelerating vehicles, untrained observers do not adequately account for acceleration (second-order information). Instead, their estimations only rely on vehicle distance and velocity (first-order information). As a result, they systemic...
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2023-01-01
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| Series: | PLoS ONE |
| Online Access: | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0288206&type=printable |
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| author | Marlene Wessels Heiko Hecht Thirsa Huisman Daniel Oberfeld |
| author_facet | Marlene Wessels Heiko Hecht Thirsa Huisman Daniel Oberfeld |
| author_sort | Marlene Wessels |
| collection | DOAJ |
| description | When judging the time-to-collision (TTC) of visually presented accelerating vehicles, untrained observers do not adequately account for acceleration (second-order information). Instead, their estimations only rely on vehicle distance and velocity (first-order information). As a result, they systemically overestimate the TTC for accelerating objects, which represents a potential risk for pedestrians in traffic situations because it might trigger unsafe road-crossing behavior. Can training help reduce these estimation errors? In this study, we tested whether training with trial-by-trial feedback about the signed deviation of the estimated from the actual TTC can improve TTC estimation accuracy for accelerating vehicles. Using a prediction-motion paradigm, we measured the estimated TTCs of twenty participants for constant-velocity and accelerated vehicle approaches, from a pedestrian's perspective in a VR traffic simulation. The experiment included three blocks, of which only the second block provided trial-by-trial feedback about the TTC estimation accuracy. Participants adjusted their estimations during and after the feedback, but they failed to differentiate between accelerated and constant-velocity approaches. Thus, the feedback did not help them account for acceleration. The results suggest that a safety training program based on trial-by-trial feedback is not a promising countermeasure against pedestrians' erroneous TTC estimation for accelerating objects. |
| format | Article |
| id | doaj-art-2ddbc66cfda545ac88d0ec121398dcdf |
| institution | OA Journals |
| issn | 1932-6203 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-2ddbc66cfda545ac88d0ec121398dcdf2025-08-20T02:38:55ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01188e028820610.1371/journal.pone.0288206Trial-by-trial feedback fails to improve the consideration of acceleration in visual time-to-collision estimation.Marlene WesselsHeiko HechtThirsa HuismanDaniel OberfeldWhen judging the time-to-collision (TTC) of visually presented accelerating vehicles, untrained observers do not adequately account for acceleration (second-order information). Instead, their estimations only rely on vehicle distance and velocity (first-order information). As a result, they systemically overestimate the TTC for accelerating objects, which represents a potential risk for pedestrians in traffic situations because it might trigger unsafe road-crossing behavior. Can training help reduce these estimation errors? In this study, we tested whether training with trial-by-trial feedback about the signed deviation of the estimated from the actual TTC can improve TTC estimation accuracy for accelerating vehicles. Using a prediction-motion paradigm, we measured the estimated TTCs of twenty participants for constant-velocity and accelerated vehicle approaches, from a pedestrian's perspective in a VR traffic simulation. The experiment included three blocks, of which only the second block provided trial-by-trial feedback about the TTC estimation accuracy. Participants adjusted their estimations during and after the feedback, but they failed to differentiate between accelerated and constant-velocity approaches. Thus, the feedback did not help them account for acceleration. The results suggest that a safety training program based on trial-by-trial feedback is not a promising countermeasure against pedestrians' erroneous TTC estimation for accelerating objects.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0288206&type=printable |
| spellingShingle | Marlene Wessels Heiko Hecht Thirsa Huisman Daniel Oberfeld Trial-by-trial feedback fails to improve the consideration of acceleration in visual time-to-collision estimation. PLoS ONE |
| title | Trial-by-trial feedback fails to improve the consideration of acceleration in visual time-to-collision estimation. |
| title_full | Trial-by-trial feedback fails to improve the consideration of acceleration in visual time-to-collision estimation. |
| title_fullStr | Trial-by-trial feedback fails to improve the consideration of acceleration in visual time-to-collision estimation. |
| title_full_unstemmed | Trial-by-trial feedback fails to improve the consideration of acceleration in visual time-to-collision estimation. |
| title_short | Trial-by-trial feedback fails to improve the consideration of acceleration in visual time-to-collision estimation. |
| title_sort | trial by trial feedback fails to improve the consideration of acceleration in visual time to collision estimation |
| url | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0288206&type=printable |
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