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Speed of Human Biological Form and Motion Processing
Recent work suggests that biological motion processing can begin within ~110 ms of stimulus onset, as indexed by the P1 component of the event-related potential (ERP). Here, we investigated whether modulation of the P1 component reflects configural processing alone, rather than the processing of bot...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3722264/ https://www.ncbi.nlm.nih.gov/pubmed/23894467 http://dx.doi.org/10.1371/journal.pone.0069396 |
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author | Buzzell, George Chubb, Laura Safford, Ashley S. Thompson, James C. McDonald, Craig G. |
author_facet | Buzzell, George Chubb, Laura Safford, Ashley S. Thompson, James C. McDonald, Craig G. |
author_sort | Buzzell, George |
collection | PubMed |
description | Recent work suggests that biological motion processing can begin within ~110 ms of stimulus onset, as indexed by the P1 component of the event-related potential (ERP). Here, we investigated whether modulation of the P1 component reflects configural processing alone, rather than the processing of both configuration and motion cues. A three-stimulus oddball task was employed to evaluate bottom-up processing of biological motion. Intact point-light walkers (PLWs) or scrambled PLWs served as distractor stimuli, whereas point-light displays of tool motion served as standard and target stimuli. In a second experiment, the same design was used, but the dynamic stimuli were replaced with static point-light displays. The first experiment revealed that dynamic PLWs elicited a larger P1 as compared to scrambled PLWs. A similar P1 increase was also observed for static PLWs in the second experiment, indicating that these stimuli were more salient than static, scrambled PLWs. These findings suggest that the visual system can rapidly extract global form information from static PLWs and that the observed P1 effect for dynamic PLWs is not dependent on the presence of motion cues. Finally, we found that the N1 component was sensitive to dynamic, but not static, PLWs, suggesting that this component reflects the processing of both form and motion information. The sensitivity of P1 to static PLWs has implications for dynamic form models of biological motion processing that posit temporal integration of configural cues present in individual frames of PLW animations. |
format | Online Article Text |
id | pubmed-3722264 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-37222642013-07-26 Speed of Human Biological Form and Motion Processing Buzzell, George Chubb, Laura Safford, Ashley S. Thompson, James C. McDonald, Craig G. PLoS One Research Article Recent work suggests that biological motion processing can begin within ~110 ms of stimulus onset, as indexed by the P1 component of the event-related potential (ERP). Here, we investigated whether modulation of the P1 component reflects configural processing alone, rather than the processing of both configuration and motion cues. A three-stimulus oddball task was employed to evaluate bottom-up processing of biological motion. Intact point-light walkers (PLWs) or scrambled PLWs served as distractor stimuli, whereas point-light displays of tool motion served as standard and target stimuli. In a second experiment, the same design was used, but the dynamic stimuli were replaced with static point-light displays. The first experiment revealed that dynamic PLWs elicited a larger P1 as compared to scrambled PLWs. A similar P1 increase was also observed for static PLWs in the second experiment, indicating that these stimuli were more salient than static, scrambled PLWs. These findings suggest that the visual system can rapidly extract global form information from static PLWs and that the observed P1 effect for dynamic PLWs is not dependent on the presence of motion cues. Finally, we found that the N1 component was sensitive to dynamic, but not static, PLWs, suggesting that this component reflects the processing of both form and motion information. The sensitivity of P1 to static PLWs has implications for dynamic form models of biological motion processing that posit temporal integration of configural cues present in individual frames of PLW animations. Public Library of Science 2013-07-24 /pmc/articles/PMC3722264/ /pubmed/23894467 http://dx.doi.org/10.1371/journal.pone.0069396 Text en © 2013 Buzzell et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Buzzell, George Chubb, Laura Safford, Ashley S. Thompson, James C. McDonald, Craig G. Speed of Human Biological Form and Motion Processing |
title | Speed of Human Biological Form and Motion Processing |
title_full | Speed of Human Biological Form and Motion Processing |
title_fullStr | Speed of Human Biological Form and Motion Processing |
title_full_unstemmed | Speed of Human Biological Form and Motion Processing |
title_short | Speed of Human Biological Form and Motion Processing |
title_sort | speed of human biological form and motion processing |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3722264/ https://www.ncbi.nlm.nih.gov/pubmed/23894467 http://dx.doi.org/10.1371/journal.pone.0069396 |
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