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...

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Autores principales:	George Buzzell, Laura Chubb, Ashley S Safford, James C Thompson, Craig G McDonald
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/737ef68f28b542328c78d062e49ed71e
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spelling	oai:doaj.org-article:737ef68f28b542328c78d062e49ed71e2021-11-18T09:03:08ZSpeed of human biological form and motion processing.1932-620310.1371/journal.pone.0069396https://doaj.org/article/737ef68f28b542328c78d062e49ed71e2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23894467/?tool=EBIhttps://doaj.org/toc/1932-6203Recent 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.George BuzzellLaura ChubbAshley S SaffordJames C ThompsonCraig G McDonaldPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 7, p e69396 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q George Buzzell Laura Chubb Ashley S Safford James C Thompson Craig G McDonald Speed of human biological form and motion processing.
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	article
author	George Buzzell Laura Chubb Ashley S Safford James C Thompson Craig G McDonald
author_facet	George Buzzell Laura Chubb Ashley S Safford James C Thompson Craig G McDonald
author_sort	George Buzzell
title	Speed of human biological form and motion processing.
title_short	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_sort	speed of human biological form and motion processing.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/737ef68f28b542328c78d062e49ed71e
work_keys_str_mv	AT georgebuzzell speedofhumanbiologicalformandmotionprocessing AT laurachubb speedofhumanbiologicalformandmotionprocessing AT ashleyssafford speedofhumanbiologicalformandmotionprocessing AT jamescthompson speedofhumanbiologicalformandmotionprocessing AT craiggmcdonald speedofhumanbiologicalformandmotionprocessing
_version_	1718420970423713792

Speed of human biological form and motion processing.

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