Apparent motion from outside the visual field, retinotopic cortices may register extra-retinal positions.

Observers made a saccade between two fixation markers while a probe was flashed sequentially at two locations on a side screen. The first probe was presented in the far periphery just within the observer's visual field. This target was extinguished and the observers made a large saccade away fr...

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Autores principales:	Martin Szinte, Patrick Cavanagh
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/13b1a6c0e4cb43a7aba8c858848e4bde
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spelling	oai:doaj.org-article:13b1a6c0e4cb43a7aba8c858848e4bde2021-11-18T08:11:59ZApparent motion from outside the visual field, retinotopic cortices may register extra-retinal positions.1932-620310.1371/journal.pone.0047386https://doaj.org/article/13b1a6c0e4cb43a7aba8c858848e4bde2012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23077606/?tool=EBIhttps://doaj.org/toc/1932-6203Observers made a saccade between two fixation markers while a probe was flashed sequentially at two locations on a side screen. The first probe was presented in the far periphery just within the observer's visual field. This target was extinguished and the observers made a large saccade away from the probe, which would have left it far outside the visual field if it had still been present. The second probe was then presented, displaced from the first in the same direction as the eye movement and by about the same distance as the saccade step. Because both eyes and probes shifted by similar amounts, there was little or no shift between the first and second probe positions on the retina. Nevertheless, subjects reported seeing motion corresponding to the spatial displacement not the retinal displacement. When the second probe was presented, the effective location of the first probe lay outside the visual field demonstrating that apparent motion can be seen from a location outside the visual field to a second location inside the visual field. Recent physiological results suggest that target locations are "remapped" on retinotopic representations to correct for the effects of eye movements. Our results suggest that the representations on which this remapping occurs include locations that fall beyond the limits of the retina.Martin SzintePatrick CavanaghPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 10, p e47386 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Martin Szinte Patrick Cavanagh Apparent motion from outside the visual field, retinotopic cortices may register extra-retinal positions.
description	Observers made a saccade between two fixation markers while a probe was flashed sequentially at two locations on a side screen. The first probe was presented in the far periphery just within the observer's visual field. This target was extinguished and the observers made a large saccade away from the probe, which would have left it far outside the visual field if it had still been present. The second probe was then presented, displaced from the first in the same direction as the eye movement and by about the same distance as the saccade step. Because both eyes and probes shifted by similar amounts, there was little or no shift between the first and second probe positions on the retina. Nevertheless, subjects reported seeing motion corresponding to the spatial displacement not the retinal displacement. When the second probe was presented, the effective location of the first probe lay outside the visual field demonstrating that apparent motion can be seen from a location outside the visual field to a second location inside the visual field. Recent physiological results suggest that target locations are "remapped" on retinotopic representations to correct for the effects of eye movements. Our results suggest that the representations on which this remapping occurs include locations that fall beyond the limits of the retina.
format	article
author	Martin Szinte Patrick Cavanagh
author_facet	Martin Szinte Patrick Cavanagh
author_sort	Martin Szinte
title	Apparent motion from outside the visual field, retinotopic cortices may register extra-retinal positions.
title_short	Apparent motion from outside the visual field, retinotopic cortices may register extra-retinal positions.
title_full	Apparent motion from outside the visual field, retinotopic cortices may register extra-retinal positions.
title_fullStr	Apparent motion from outside the visual field, retinotopic cortices may register extra-retinal positions.
title_full_unstemmed	Apparent motion from outside the visual field, retinotopic cortices may register extra-retinal positions.
title_sort	apparent motion from outside the visual field, retinotopic cortices may register extra-retinal positions.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/13b1a6c0e4cb43a7aba8c858848e4bde
work_keys_str_mv	AT martinszinte apparentmotionfromoutsidethevisualfieldretinotopiccorticesmayregisterextraretinalpositions AT patrickcavanagh apparentmotionfromoutsidethevisualfieldretinotopiccorticesmayregisterextraretinalpositions
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Apparent motion from outside the visual field, retinotopic cortices may register extra-retinal positions.

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