The effects of visual control and distance in modulating peripersonal spatial representation.

In the presence of vision, finalized motor acts can trigger spatial remapping, i.e., reference frames transformations to allow for a better interaction with targets. However, it is yet unclear how the peripersonal space is encoded and remapped depending on the availability of visual feedback and on...

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Autores principales:	Chiara Renzi, Emiliano Ricciardi, Daniela Bonino, Giacomo Handjaras, Tomaso Vecchi, Pietro Pietrini
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/415a28f476d94ac7909cf2ab16d10f6b
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id	oai:doaj.org-article:415a28f476d94ac7909cf2ab16d10f6b
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spelling	oai:doaj.org-article:415a28f476d94ac7909cf2ab16d10f6b2021-11-18T07:53:12ZThe effects of visual control and distance in modulating peripersonal spatial representation.1932-620310.1371/journal.pone.0059460https://doaj.org/article/415a28f476d94ac7909cf2ab16d10f6b2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23555037/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203In the presence of vision, finalized motor acts can trigger spatial remapping, i.e., reference frames transformations to allow for a better interaction with targets. However, it is yet unclear how the peripersonal space is encoded and remapped depending on the availability of visual feedback and on the target position within the individual's reachable space, and which cerebral areas subserve such processes. Here, functional magnetic resonance imaging (fMRI) was used to examine neural activity while healthy young participants performed reach-to-grasp movements with and without visual feedback and at different distances of the target from the effector (near to the hand-about 15 cm from the starting position-vs. far from the hand-about 30 cm from the starting position). Brain response in the superior parietal lobule bilaterally, in the right dorsal premotor cortex, and in the anterior part of the right inferior parietal lobule was significantly greater during visually-guided grasping of targets located at the far distance compared to grasping of targets located near to the hand. In the absence of visual feedback, the inferior parietal lobule exhibited a greater activity during grasping of targets at the near compared to the far distance. Results suggest that in the presence of visual feedback, a visuo-motor circuit integrates visuo-motor information when targets are located farther away. Conversely in the absence of visual feedback, encoding of space may demand multisensory remapping processes, even in the case of more proximal targets.Chiara RenziEmiliano RicciardiDaniela BoninoGiacomo HandjarasTomaso VecchiPietro PietriniPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 3, p e59460 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chiara Renzi Emiliano Ricciardi Daniela Bonino Giacomo Handjaras Tomaso Vecchi Pietro Pietrini The effects of visual control and distance in modulating peripersonal spatial representation.
description	In the presence of vision, finalized motor acts can trigger spatial remapping, i.e., reference frames transformations to allow for a better interaction with targets. However, it is yet unclear how the peripersonal space is encoded and remapped depending on the availability of visual feedback and on the target position within the individual's reachable space, and which cerebral areas subserve such processes. Here, functional magnetic resonance imaging (fMRI) was used to examine neural activity while healthy young participants performed reach-to-grasp movements with and without visual feedback and at different distances of the target from the effector (near to the hand-about 15 cm from the starting position-vs. far from the hand-about 30 cm from the starting position). Brain response in the superior parietal lobule bilaterally, in the right dorsal premotor cortex, and in the anterior part of the right inferior parietal lobule was significantly greater during visually-guided grasping of targets located at the far distance compared to grasping of targets located near to the hand. In the absence of visual feedback, the inferior parietal lobule exhibited a greater activity during grasping of targets at the near compared to the far distance. Results suggest that in the presence of visual feedback, a visuo-motor circuit integrates visuo-motor information when targets are located farther away. Conversely in the absence of visual feedback, encoding of space may demand multisensory remapping processes, even in the case of more proximal targets.
format	article
author	Chiara Renzi Emiliano Ricciardi Daniela Bonino Giacomo Handjaras Tomaso Vecchi Pietro Pietrini
author_facet	Chiara Renzi Emiliano Ricciardi Daniela Bonino Giacomo Handjaras Tomaso Vecchi Pietro Pietrini
author_sort	Chiara Renzi
title	The effects of visual control and distance in modulating peripersonal spatial representation.
title_short	The effects of visual control and distance in modulating peripersonal spatial representation.
title_full	The effects of visual control and distance in modulating peripersonal spatial representation.
title_fullStr	The effects of visual control and distance in modulating peripersonal spatial representation.
title_full_unstemmed	The effects of visual control and distance in modulating peripersonal spatial representation.
title_sort	effects of visual control and distance in modulating peripersonal spatial representation.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/415a28f476d94ac7909cf2ab16d10f6b
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The effects of visual control and distance in modulating peripersonal spatial representation.

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