Fix your eyes in the space you could reach: neurons in the macaque medial parietal cortex prefer gaze positions in peripersonal space.

Interacting in the peripersonal space requires coordinated arm and eye movements to visual targets in depth. In primates, the medial posterior parietal cortex (PPC) represents a crucial node in the process of visual-to-motor signal transformations. The medial PPC area V6A is a key region engaged in...

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Autores principales:	Kostas Hadjidimitrakis, Rossella Breveglieri, Giacomo Placenti, Annalisa Bosco, Silvio P Sabatini, Patrizia Fattori
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2011
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f5e18eb4def54c6e818d3b469c0b8c87
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id	oai:doaj.org-article:f5e18eb4def54c6e818d3b469c0b8c87
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spelling	oai:doaj.org-article:f5e18eb4def54c6e818d3b469c0b8c872021-11-18T06:47:48ZFix your eyes in the space you could reach: neurons in the macaque medial parietal cortex prefer gaze positions in peripersonal space.1932-620310.1371/journal.pone.0023335https://doaj.org/article/f5e18eb4def54c6e818d3b469c0b8c872011-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21858075/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Interacting in the peripersonal space requires coordinated arm and eye movements to visual targets in depth. In primates, the medial posterior parietal cortex (PPC) represents a crucial node in the process of visual-to-motor signal transformations. The medial PPC area V6A is a key region engaged in the control of these processes because it jointly processes visual information, eye position and arm movement related signals. However, to date, there is no evidence in the medial PPC of spatial encoding in three dimensions. Here, using single neuron recordings in behaving macaques, we studied the neural signals related to binocular eye position in a task that required the monkeys to perform saccades and fixate targets at different locations in peripersonal and extrapersonal space. A significant proportion of neurons were modulated by both gaze direction and depth, i.e., by the location of the foveated target in 3D space. The population activity of these neurons displayed a strong preference for peripersonal space in a time interval around the saccade that preceded fixation and during fixation as well. This preference for targets within reaching distance during both target capturing and fixation suggests that binocular eye position signals are implemented functionally in V6A to support its role in reaching and grasping.Kostas HadjidimitrakisRossella BreveglieriGiacomo PlacentiAnnalisa BoscoSilvio P SabatiniPatrizia FattoriPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 8, p e23335 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kostas Hadjidimitrakis Rossella Breveglieri Giacomo Placenti Annalisa Bosco Silvio P Sabatini Patrizia Fattori Fix your eyes in the space you could reach: neurons in the macaque medial parietal cortex prefer gaze positions in peripersonal space.
description	Interacting in the peripersonal space requires coordinated arm and eye movements to visual targets in depth. In primates, the medial posterior parietal cortex (PPC) represents a crucial node in the process of visual-to-motor signal transformations. The medial PPC area V6A is a key region engaged in the control of these processes because it jointly processes visual information, eye position and arm movement related signals. However, to date, there is no evidence in the medial PPC of spatial encoding in three dimensions. Here, using single neuron recordings in behaving macaques, we studied the neural signals related to binocular eye position in a task that required the monkeys to perform saccades and fixate targets at different locations in peripersonal and extrapersonal space. A significant proportion of neurons were modulated by both gaze direction and depth, i.e., by the location of the foveated target in 3D space. The population activity of these neurons displayed a strong preference for peripersonal space in a time interval around the saccade that preceded fixation and during fixation as well. This preference for targets within reaching distance during both target capturing and fixation suggests that binocular eye position signals are implemented functionally in V6A to support its role in reaching and grasping.
format	article
author	Kostas Hadjidimitrakis Rossella Breveglieri Giacomo Placenti Annalisa Bosco Silvio P Sabatini Patrizia Fattori
author_facet	Kostas Hadjidimitrakis Rossella Breveglieri Giacomo Placenti Annalisa Bosco Silvio P Sabatini Patrizia Fattori
author_sort	Kostas Hadjidimitrakis
title	Fix your eyes in the space you could reach: neurons in the macaque medial parietal cortex prefer gaze positions in peripersonal space.
title_short	Fix your eyes in the space you could reach: neurons in the macaque medial parietal cortex prefer gaze positions in peripersonal space.
title_full	Fix your eyes in the space you could reach: neurons in the macaque medial parietal cortex prefer gaze positions in peripersonal space.
title_fullStr	Fix your eyes in the space you could reach: neurons in the macaque medial parietal cortex prefer gaze positions in peripersonal space.
title_full_unstemmed	Fix your eyes in the space you could reach: neurons in the macaque medial parietal cortex prefer gaze positions in peripersonal space.
title_sort	fix your eyes in the space you could reach: neurons in the macaque medial parietal cortex prefer gaze positions in peripersonal space.
publisher	Public Library of Science (PLoS)
publishDate	2011
url	https://doaj.org/article/f5e18eb4def54c6e818d3b469c0b8c87
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Fix your eyes in the space you could reach: neurons in the macaque medial parietal cortex prefer gaze positions in peripersonal space.

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