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Effects of Visual Context upon Functional Connectivity during Observation of Biological Motions
The aim of this study was to examine brain responses, in particular functional connectivity, to different visual stimuli depicting familiar biological motions. Ten subjects actively observed familiar biological motions embedded in point-light and video displays. Electroencephalograms were recorded f...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3186803/ https://www.ncbi.nlm.nih.gov/pubmed/21991384 http://dx.doi.org/10.1371/journal.pone.0025903 |
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author | Hars, Magaly Hars, Mélany Stam, Cornelis J. Calmels, Claire |
author_facet | Hars, Magaly Hars, Mélany Stam, Cornelis J. Calmels, Claire |
author_sort | Hars, Magaly |
collection | PubMed |
description | The aim of this study was to examine brain responses, in particular functional connectivity, to different visual stimuli depicting familiar biological motions. Ten subjects actively observed familiar biological motions embedded in point-light and video displays. Electroencephalograms were recorded from 64 electrodes. Activity was considered in three frequency bands (4–8 Hz, 8–10 Hz, and 10–13 Hz) using a non-linear measure of functional connectivity. In the 4–8 Hz and 8–10 Hz frequency bands, functional connectivity for the SMA was greater during the observation of biological motions presented in a point-light display compared to the observation of motions presented in a video display. The reverse was observed for the 4–8 Hz frequency band for the left temporal area. Explanations related to: (i) the task demands (i.e., attention and mental effort), (ii) the role(s) of theta and alpha oscillations in cognitive processes, and (iii) the function(s) of cortical areas are discussed. It has been suggested that attention was required to process human biological motions under unfamiliar viewing conditions such as point-light display. |
format | Online Article Text |
id | pubmed-3186803 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-31868032011-10-11 Effects of Visual Context upon Functional Connectivity during Observation of Biological Motions Hars, Magaly Hars, Mélany Stam, Cornelis J. Calmels, Claire PLoS One Research Article The aim of this study was to examine brain responses, in particular functional connectivity, to different visual stimuli depicting familiar biological motions. Ten subjects actively observed familiar biological motions embedded in point-light and video displays. Electroencephalograms were recorded from 64 electrodes. Activity was considered in three frequency bands (4–8 Hz, 8–10 Hz, and 10–13 Hz) using a non-linear measure of functional connectivity. In the 4–8 Hz and 8–10 Hz frequency bands, functional connectivity for the SMA was greater during the observation of biological motions presented in a point-light display compared to the observation of motions presented in a video display. The reverse was observed for the 4–8 Hz frequency band for the left temporal area. Explanations related to: (i) the task demands (i.e., attention and mental effort), (ii) the role(s) of theta and alpha oscillations in cognitive processes, and (iii) the function(s) of cortical areas are discussed. It has been suggested that attention was required to process human biological motions under unfamiliar viewing conditions such as point-light display. Public Library of Science 2011-10-04 /pmc/articles/PMC3186803/ /pubmed/21991384 http://dx.doi.org/10.1371/journal.pone.0025903 Text en Hars 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 Hars, Magaly Hars, Mélany Stam, Cornelis J. Calmels, Claire Effects of Visual Context upon Functional Connectivity during Observation of Biological Motions |
title | Effects of Visual Context upon Functional Connectivity during Observation of Biological Motions |
title_full | Effects of Visual Context upon Functional Connectivity during Observation of Biological Motions |
title_fullStr | Effects of Visual Context upon Functional Connectivity during Observation of Biological Motions |
title_full_unstemmed | Effects of Visual Context upon Functional Connectivity during Observation of Biological Motions |
title_short | Effects of Visual Context upon Functional Connectivity during Observation of Biological Motions |
title_sort | effects of visual context upon functional connectivity during observation of biological motions |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3186803/ https://www.ncbi.nlm.nih.gov/pubmed/21991384 http://dx.doi.org/10.1371/journal.pone.0025903 |
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