Minor and unsystematic cortical topographic changes of attention correlates between modalities.

In this study we analyzed the topography of induced cortical oscillations in 20 healthy individuals performing simple attention tasks. We were interested in qualitatively replicating our recent findings on the localization of attention-induced beta bands during a visual task [1], and verifying wheth...

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Autores principales:	Luis F H Basile, Mirna D Lozano, Milkes Y Alvarenga, José F Pereira, Sérgio Machado, Bruna Velasques, Pedro Ribeiro, Roberto Piedade, Renato Anghinah, Gennady Knyazev, Renato T Ramos
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2010
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/155f4000e04a458688ea2b6f49f7c3ba
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spelling	oai:doaj.org-article:155f4000e04a458688ea2b6f49f7c3ba2021-11-18T07:01:34ZMinor and unsystematic cortical topographic changes of attention correlates between modalities.1932-620310.1371/journal.pone.0015022https://doaj.org/article/155f4000e04a458688ea2b6f49f7c3ba2010-12-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21179421/?tool=EBIhttps://doaj.org/toc/1932-6203In this study we analyzed the topography of induced cortical oscillations in 20 healthy individuals performing simple attention tasks. We were interested in qualitatively replicating our recent findings on the localization of attention-induced beta bands during a visual task [1], and verifying whether significant topographic changes would follow the change of attention to the auditory modality. We computed corrected latency averaging of each induced frequency bands, and modeled their generators by current density reconstruction with Lp-norm minimization. We quantified topographic similarity between conditions by an analysis of correlations, whereas the inter-modality significant differences in attention correlates were illustrated in each individual case. We replicated the qualitative result of highly idiosyncratic topography of attention-related activity to individuals, manifested both in the beta bands, and previously studied slow potential distributions [2]. Visual inspection of both scalp potentials and distribution of cortical currents showed minor changes in attention-related bands with respect to modality, as compared to the theta and delta bands, known to be major contributors to the sensory-related potentials. Quantitative results agreed with visual inspection, supporting to the conclusion that attention-related activity does not change much between modalities, and whatever individual changes do occur, they are not systematic in cortical localization across subjects. We discuss our results, combined with results from other studies that present individual data, with respect to the function of cortical association areas.Luis F H BasileMirna D LozanoMilkes Y AlvarengaJosé F PereiraSérgio MachadoBruna VelasquesPedro RibeiroRoberto PiedadeRenato AnghinahGennady KnyazevRenato T RamosPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 5, Iss 12, p e15022 (2010)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Luis F H Basile Mirna D Lozano Milkes Y Alvarenga José F Pereira Sérgio Machado Bruna Velasques Pedro Ribeiro Roberto Piedade Renato Anghinah Gennady Knyazev Renato T Ramos Minor and unsystematic cortical topographic changes of attention correlates between modalities.
description	In this study we analyzed the topography of induced cortical oscillations in 20 healthy individuals performing simple attention tasks. We were interested in qualitatively replicating our recent findings on the localization of attention-induced beta bands during a visual task [1], and verifying whether significant topographic changes would follow the change of attention to the auditory modality. We computed corrected latency averaging of each induced frequency bands, and modeled their generators by current density reconstruction with Lp-norm minimization. We quantified topographic similarity between conditions by an analysis of correlations, whereas the inter-modality significant differences in attention correlates were illustrated in each individual case. We replicated the qualitative result of highly idiosyncratic topography of attention-related activity to individuals, manifested both in the beta bands, and previously studied slow potential distributions [2]. Visual inspection of both scalp potentials and distribution of cortical currents showed minor changes in attention-related bands with respect to modality, as compared to the theta and delta bands, known to be major contributors to the sensory-related potentials. Quantitative results agreed with visual inspection, supporting to the conclusion that attention-related activity does not change much between modalities, and whatever individual changes do occur, they are not systematic in cortical localization across subjects. We discuss our results, combined with results from other studies that present individual data, with respect to the function of cortical association areas.
format	article
author	Luis F H Basile Mirna D Lozano Milkes Y Alvarenga José F Pereira Sérgio Machado Bruna Velasques Pedro Ribeiro Roberto Piedade Renato Anghinah Gennady Knyazev Renato T Ramos
author_facet	Luis F H Basile Mirna D Lozano Milkes Y Alvarenga José F Pereira Sérgio Machado Bruna Velasques Pedro Ribeiro Roberto Piedade Renato Anghinah Gennady Knyazev Renato T Ramos
author_sort	Luis F H Basile
title	Minor and unsystematic cortical topographic changes of attention correlates between modalities.
title_short	Minor and unsystematic cortical topographic changes of attention correlates between modalities.
title_full	Minor and unsystematic cortical topographic changes of attention correlates between modalities.
title_fullStr	Minor and unsystematic cortical topographic changes of attention correlates between modalities.
title_full_unstemmed	Minor and unsystematic cortical topographic changes of attention correlates between modalities.
title_sort	minor and unsystematic cortical topographic changes of attention correlates between modalities.
publisher	Public Library of Science (PLoS)
publishDate	2010
url	https://doaj.org/article/155f4000e04a458688ea2b6f49f7c3ba
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Minor and unsystematic cortical topographic changes of attention correlates between modalities.

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