The temporal dynamics of early visual cortex involvement in behavioral priming.

Transcranial magnetic stimulation (TMS) allows for non-invasive interference with ongoing neural processing. Applied in a chronometric design over early visual cortex (EVC), TMS has proved valuable in indicating at which particular time point EVC must remain unperturbed for (conscious) vision to be...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Christianne Jacobs, Tom A de Graaf, Rainer Goebel, Alexander T Sack
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a58ecf24dbe342fab39182509dc9be9b
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:a58ecf24dbe342fab39182509dc9be9b
record_format	dspace
spelling	oai:doaj.org-article:a58ecf24dbe342fab39182509dc9be9b2021-11-18T08:08:53ZThe temporal dynamics of early visual cortex involvement in behavioral priming.1932-620310.1371/journal.pone.0048808https://doaj.org/article/a58ecf24dbe342fab39182509dc9be9b2012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23155408/?tool=EBIhttps://doaj.org/toc/1932-6203Transcranial magnetic stimulation (TMS) allows for non-invasive interference with ongoing neural processing. Applied in a chronometric design over early visual cortex (EVC), TMS has proved valuable in indicating at which particular time point EVC must remain unperturbed for (conscious) vision to be established. In the current study, we set out to examine the effect of EVC TMS across a broad range of time points, both before (pre-stimulus) and after (post-stimulus) the onset of symbolic visual stimuli. Behavioral priming studies have shown that the behavioral impact of a visual stimulus can be independent from its conscious perception, suggesting two independent neural signatures. To assess whether TMS-induced suppression of visual awareness can be dissociated from behavioral priming in the temporal domain, we thus implemented three different measures of visual processing, namely performance on a standard visual discrimination task, a subjective rating of stimulus visibility, and a visual priming task. To control for non-neural TMS effects, we performed electrooculographical recordings, placebo TMS (sham), and control site TMS (vertex). Our results suggest that, when considering the appropriate control data, the temporal pattern of EVC TMS disruption on visual discrimination, subjective awareness and behavioral priming are not dissociable. Instead, TMS to EVC disrupts visual perception holistically, both when applied before and after the onset of a visual stimulus. The current findings are discussed in light of their implications on models of visual awareness and (subliminal) priming.Christianne JacobsTom A de GraafRainer GoebelAlexander T SackPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 11, p e48808 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Christianne Jacobs Tom A de Graaf Rainer Goebel Alexander T Sack The temporal dynamics of early visual cortex involvement in behavioral priming.
description	Transcranial magnetic stimulation (TMS) allows for non-invasive interference with ongoing neural processing. Applied in a chronometric design over early visual cortex (EVC), TMS has proved valuable in indicating at which particular time point EVC must remain unperturbed for (conscious) vision to be established. In the current study, we set out to examine the effect of EVC TMS across a broad range of time points, both before (pre-stimulus) and after (post-stimulus) the onset of symbolic visual stimuli. Behavioral priming studies have shown that the behavioral impact of a visual stimulus can be independent from its conscious perception, suggesting two independent neural signatures. To assess whether TMS-induced suppression of visual awareness can be dissociated from behavioral priming in the temporal domain, we thus implemented three different measures of visual processing, namely performance on a standard visual discrimination task, a subjective rating of stimulus visibility, and a visual priming task. To control for non-neural TMS effects, we performed electrooculographical recordings, placebo TMS (sham), and control site TMS (vertex). Our results suggest that, when considering the appropriate control data, the temporal pattern of EVC TMS disruption on visual discrimination, subjective awareness and behavioral priming are not dissociable. Instead, TMS to EVC disrupts visual perception holistically, both when applied before and after the onset of a visual stimulus. The current findings are discussed in light of their implications on models of visual awareness and (subliminal) priming.
format	article
author	Christianne Jacobs Tom A de Graaf Rainer Goebel Alexander T Sack
author_facet	Christianne Jacobs Tom A de Graaf Rainer Goebel Alexander T Sack
author_sort	Christianne Jacobs
title	The temporal dynamics of early visual cortex involvement in behavioral priming.
title_short	The temporal dynamics of early visual cortex involvement in behavioral priming.
title_full	The temporal dynamics of early visual cortex involvement in behavioral priming.
title_fullStr	The temporal dynamics of early visual cortex involvement in behavioral priming.
title_full_unstemmed	The temporal dynamics of early visual cortex involvement in behavioral priming.
title_sort	temporal dynamics of early visual cortex involvement in behavioral priming.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/a58ecf24dbe342fab39182509dc9be9b
work_keys_str_mv	AT christiannejacobs thetemporaldynamicsofearlyvisualcortexinvolvementinbehavioralpriming AT tomadegraaf thetemporaldynamicsofearlyvisualcortexinvolvementinbehavioralpriming AT rainergoebel thetemporaldynamicsofearlyvisualcortexinvolvementinbehavioralpriming AT alexandertsack thetemporaldynamicsofearlyvisualcortexinvolvementinbehavioralpriming AT christiannejacobs temporaldynamicsofearlyvisualcortexinvolvementinbehavioralpriming AT tomadegraaf temporaldynamicsofearlyvisualcortexinvolvementinbehavioralpriming AT rainergoebel temporaldynamicsofearlyvisualcortexinvolvementinbehavioralpriming AT alexandertsack temporaldynamicsofearlyvisualcortexinvolvementinbehavioralpriming
_version_	1718422185736929280

The temporal dynamics of early visual cortex involvement in behavioral priming.

Ejemplares similares