Deployment of spatial attention towards locations in memory representations. An EEG study.

Recalling information from visual short-term memory (VSTM) involves the same neural mechanisms as attending to an actually perceived scene. In particular, retrieval from VSTM has been associated with orienting of visual attention towards a location within a spatially-organized memory representation....

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Autores principales:	Marcin Leszczyński, Agnieszka Wykowska, Jairo Perez-Osorio, Hermann J Müller
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3542ecfca53e4a62921427cb088bea92
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id	oai:doaj.org-article:3542ecfca53e4a62921427cb088bea92
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spelling	oai:doaj.org-article:3542ecfca53e4a62921427cb088bea922021-11-18T08:40:18ZDeployment of spatial attention towards locations in memory representations. An EEG study.1932-620310.1371/journal.pone.0083856https://doaj.org/article/3542ecfca53e4a62921427cb088bea922013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24386295/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Recalling information from visual short-term memory (VSTM) involves the same neural mechanisms as attending to an actually perceived scene. In particular, retrieval from VSTM has been associated with orienting of visual attention towards a location within a spatially-organized memory representation. However, an open question concerns whether spatial attention is also recruited during VSTM retrieval even when performing the task does not require access to spatial coordinates of items in the memorized scene. The present study combined a visual search task with a modified, delayed central probe protocol, together with EEG analysis, to answer this question. We found a temporal contralateral negativity (TCN) elicited by a centrally presented go-signal which was spatially uninformative and featurally unrelated to the search target and informed participants only about a response key that they had to press to indicate a prepared target-present vs. -absent decision. This lateralization during VSTM retrieval (TCN) provides strong evidence of a shift of attention towards the target location in the memory representation, which occurred despite the fact that the present task required no spatial (or featural) information from the search to be encoded, maintained, and retrieved to produce the correct response and that the go-signal did not itself specify any information relating to the location and defining feature of the target.Marcin LeszczyńskiAgnieszka WykowskaJairo Perez-OsorioHermann J MüllerPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 12, p e83856 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Marcin Leszczyński Agnieszka Wykowska Jairo Perez-Osorio Hermann J Müller Deployment of spatial attention towards locations in memory representations. An EEG study.
description	Recalling information from visual short-term memory (VSTM) involves the same neural mechanisms as attending to an actually perceived scene. In particular, retrieval from VSTM has been associated with orienting of visual attention towards a location within a spatially-organized memory representation. However, an open question concerns whether spatial attention is also recruited during VSTM retrieval even when performing the task does not require access to spatial coordinates of items in the memorized scene. The present study combined a visual search task with a modified, delayed central probe protocol, together with EEG analysis, to answer this question. We found a temporal contralateral negativity (TCN) elicited by a centrally presented go-signal which was spatially uninformative and featurally unrelated to the search target and informed participants only about a response key that they had to press to indicate a prepared target-present vs. -absent decision. This lateralization during VSTM retrieval (TCN) provides strong evidence of a shift of attention towards the target location in the memory representation, which occurred despite the fact that the present task required no spatial (or featural) information from the search to be encoded, maintained, and retrieved to produce the correct response and that the go-signal did not itself specify any information relating to the location and defining feature of the target.
format	article
author	Marcin Leszczyński Agnieszka Wykowska Jairo Perez-Osorio Hermann J Müller
author_facet	Marcin Leszczyński Agnieszka Wykowska Jairo Perez-Osorio Hermann J Müller
author_sort	Marcin Leszczyński
title	Deployment of spatial attention towards locations in memory representations. An EEG study.
title_short	Deployment of spatial attention towards locations in memory representations. An EEG study.
title_full	Deployment of spatial attention towards locations in memory representations. An EEG study.
title_fullStr	Deployment of spatial attention towards locations in memory representations. An EEG study.
title_full_unstemmed	Deployment of spatial attention towards locations in memory representations. An EEG study.
title_sort	deployment of spatial attention towards locations in memory representations. an eeg study.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/3542ecfca53e4a62921427cb088bea92
work_keys_str_mv	AT marcinleszczynski deploymentofspatialattentiontowardslocationsinmemoryrepresentationsaneegstudy AT agnieszkawykowska deploymentofspatialattentiontowardslocationsinmemoryrepresentationsaneegstudy AT jairoperezosorio deploymentofspatialattentiontowardslocationsinmemoryrepresentationsaneegstudy AT hermannjmuller deploymentofspatialattentiontowardslocationsinmemoryrepresentationsaneegstudy
_version_	1718421437493018624

Deployment of spatial attention towards locations in memory representations. An EEG study.

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