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The role of acceleration and jerk in perception of above-threshold surge motion
Inertial motions may be defined in terms of acceleration and jerk, the time-derivative of acceleration. We investigated the relative contributions of these characteristics to the perceived intensity of motions. Participants were seated on a high-fidelity motion platform, and presented with 25 above-...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Berlin Heidelberg
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7080688/ https://www.ncbi.nlm.nih.gov/pubmed/32060563 http://dx.doi.org/10.1007/s00221-020-05745-7 |
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author | de Winkel, Ksander N. Soyka, Florian Bülthoff, Heinrich H. |
author_facet | de Winkel, Ksander N. Soyka, Florian Bülthoff, Heinrich H. |
author_sort | de Winkel, Ksander N. |
collection | PubMed |
description | Inertial motions may be defined in terms of acceleration and jerk, the time-derivative of acceleration. We investigated the relative contributions of these characteristics to the perceived intensity of motions. Participants were seated on a high-fidelity motion platform, and presented with 25 above-threshold 1 s forward (surge) motions that had acceleration values ranging between 0.5 and 2.5 [Formula: see text] and jerks between 20 and 60 [Formula: see text] , in five steps each. Participants performed two tasks: a magnitude estimation task, where they provided subjective ratings of motion intensity for each motion, and a two-interval forced choice task, where they provided judgments on which motion of a pair was more intense, for all possible combinations of the above motion profiles. Analysis of the data shows that responses on both tasks may be explained by a single model, and that this model should include acceleration only. The finding that perceived motion intensity depends on acceleration only appears inconsistent with previous findings. We show that this discrepancy can be explained by considering the frequency content of the motions, and demonstrate that a linear time-invariant systems model of the otoliths and subsequent processing can account for the present data as well as for previous findings. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s00221-020-05745-7) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-7080688 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Springer Berlin Heidelberg |
record_format | MEDLINE/PubMed |
spelling | pubmed-70806882020-03-23 The role of acceleration and jerk in perception of above-threshold surge motion de Winkel, Ksander N. Soyka, Florian Bülthoff, Heinrich H. Exp Brain Res Research Article Inertial motions may be defined in terms of acceleration and jerk, the time-derivative of acceleration. We investigated the relative contributions of these characteristics to the perceived intensity of motions. Participants were seated on a high-fidelity motion platform, and presented with 25 above-threshold 1 s forward (surge) motions that had acceleration values ranging between 0.5 and 2.5 [Formula: see text] and jerks between 20 and 60 [Formula: see text] , in five steps each. Participants performed two tasks: a magnitude estimation task, where they provided subjective ratings of motion intensity for each motion, and a two-interval forced choice task, where they provided judgments on which motion of a pair was more intense, for all possible combinations of the above motion profiles. Analysis of the data shows that responses on both tasks may be explained by a single model, and that this model should include acceleration only. The finding that perceived motion intensity depends on acceleration only appears inconsistent with previous findings. We show that this discrepancy can be explained by considering the frequency content of the motions, and demonstrate that a linear time-invariant systems model of the otoliths and subsequent processing can account for the present data as well as for previous findings. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s00221-020-05745-7) contains supplementary material, which is available to authorized users. Springer Berlin Heidelberg 2020-02-14 2020 /pmc/articles/PMC7080688/ /pubmed/32060563 http://dx.doi.org/10.1007/s00221-020-05745-7 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Research Article de Winkel, Ksander N. Soyka, Florian Bülthoff, Heinrich H. The role of acceleration and jerk in perception of above-threshold surge motion |
title | The role of acceleration and jerk in perception of above-threshold surge motion |
title_full | The role of acceleration and jerk in perception of above-threshold surge motion |
title_fullStr | The role of acceleration and jerk in perception of above-threshold surge motion |
title_full_unstemmed | The role of acceleration and jerk in perception of above-threshold surge motion |
title_short | The role of acceleration and jerk in perception of above-threshold surge motion |
title_sort | role of acceleration and jerk in perception of above-threshold surge motion |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7080688/ https://www.ncbi.nlm.nih.gov/pubmed/32060563 http://dx.doi.org/10.1007/s00221-020-05745-7 |
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