Robust single trial identification of conscious percepts triggered by sensory events of variable saliency

Detalhes bibliográficos
Autor(a) principal: Teixeira, Marta
Data de Publicação: 2014
Outros Autores: Pires, Gabriel, Raimundo, Miguel, Nascimento, Sérgio M. C., Almeida, Vasco, Castelo-Branco, Miguel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/63283
Resumo: The neural correlates of visual awareness are elusive because of its fleeting nature. Here we have addressed this issue by using single trial statistical "brain reading" of neurophysiological event related (ERP) signatures of conscious perception of visual attributes with different levels of saliency. Behavioral reports were taken at every trial in 4 experiments addressing conscious access to color, luminance, and local phase offset cues. We found that single trial neurophysiological signatures of target presence can be observed around 300 ms at central parietal sites. Such signatures are significantly related with conscious perception, and their probability is related to sensory saliency levels. These findings identify a general neural correlate of conscious perception at the single trial level, since conscious perception can be decoded as such independently of stimulus salience and fluctuations of threshold levels. This approach can be generalized to successfully detect target presence in other individuals.
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spelling Robust single trial identification of conscious percepts triggered by sensory events of variable saliencyAdultEvent-Related Potentials, P300FemaleHumansMalePhotic StimulationYoung AdultSubliminal StimulationVisual PerceptionScience & TechnologyThe neural correlates of visual awareness are elusive because of its fleeting nature. Here we have addressed this issue by using single trial statistical "brain reading" of neurophysiological event related (ERP) signatures of conscious perception of visual attributes with different levels of saliency. Behavioral reports were taken at every trial in 4 experiments addressing conscious access to color, luminance, and local phase offset cues. We found that single trial neurophysiological signatures of target presence can be observed around 300 ms at central parietal sites. Such signatures are significantly related with conscious perception, and their probability is related to sensory saliency levels. These findings identify a general neural correlate of conscious perception at the single trial level, since conscious perception can be decoded as such independently of stimulus salience and fluctuations of threshold levels. This approach can be generalized to successfully detect target presence in other individuals.This work was supported by the Portuguese Foundation for Science and Technology, grants ID: COMPETE, PEst-C/SAU/UI3282/2011, CENTRO-07-ST24-FEDER-00205, FP7-HEALTH-2013-INNOVATION-1 - 602186 - BRAINTRAIN, PTDC/SAU-NEU/68483/2006, PIC/IC/82986/2007, PTDC/SAU-ORG/118380 (FCT), and a scholarship to the first author, SFRH/BD/64383/2009, Bial Foundation 132 & 133/2013. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Public Library of Science (PLOS)Universidade do MinhoTeixeira, MartaPires, GabrielRaimundo, MiguelNascimento, Sérgio M. C.Almeida, VascoCastelo-Branco, Miguel20142014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/63283engTeixeira M, Pires G, Raimundo M, Nascimento S, Almeida V, Castelo-Branco M (2014) Robust Single Trial Identification of Conscious Percepts Triggered by Sensory Events of Variable Saliency. PLoS ONE 9(1): e86201. https://doi.org/10.1371/journal.pone.00862011932-620310.1371/journal.pone.008620124465957https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0086201info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:54:20Zoai:repositorium.sdum.uminho.pt:1822/63283Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:53:51.633962Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Robust single trial identification of conscious percepts triggered by sensory events of variable saliency
title Robust single trial identification of conscious percepts triggered by sensory events of variable saliency
spellingShingle Robust single trial identification of conscious percepts triggered by sensory events of variable saliency
Teixeira, Marta
Adult
Event-Related Potentials, P300
Female
Humans
Male
Photic Stimulation
Young Adult
Subliminal Stimulation
Visual Perception
Science & Technology
title_short Robust single trial identification of conscious percepts triggered by sensory events of variable saliency
title_full Robust single trial identification of conscious percepts triggered by sensory events of variable saliency
title_fullStr Robust single trial identification of conscious percepts triggered by sensory events of variable saliency
title_full_unstemmed Robust single trial identification of conscious percepts triggered by sensory events of variable saliency
title_sort Robust single trial identification of conscious percepts triggered by sensory events of variable saliency
author Teixeira, Marta
author_facet Teixeira, Marta
Pires, Gabriel
Raimundo, Miguel
Nascimento, Sérgio M. C.
Almeida, Vasco
Castelo-Branco, Miguel
author_role author
author2 Pires, Gabriel
Raimundo, Miguel
Nascimento, Sérgio M. C.
Almeida, Vasco
Castelo-Branco, Miguel
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Teixeira, Marta
Pires, Gabriel
Raimundo, Miguel
Nascimento, Sérgio M. C.
Almeida, Vasco
Castelo-Branco, Miguel
dc.subject.por.fl_str_mv Adult
Event-Related Potentials, P300
Female
Humans
Male
Photic Stimulation
Young Adult
Subliminal Stimulation
Visual Perception
Science & Technology
topic Adult
Event-Related Potentials, P300
Female
Humans
Male
Photic Stimulation
Young Adult
Subliminal Stimulation
Visual Perception
Science & Technology
description The neural correlates of visual awareness are elusive because of its fleeting nature. Here we have addressed this issue by using single trial statistical "brain reading" of neurophysiological event related (ERP) signatures of conscious perception of visual attributes with different levels of saliency. Behavioral reports were taken at every trial in 4 experiments addressing conscious access to color, luminance, and local phase offset cues. We found that single trial neurophysiological signatures of target presence can be observed around 300 ms at central parietal sites. Such signatures are significantly related with conscious perception, and their probability is related to sensory saliency levels. These findings identify a general neural correlate of conscious perception at the single trial level, since conscious perception can be decoded as such independently of stimulus salience and fluctuations of threshold levels. This approach can be generalized to successfully detect target presence in other individuals.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/63283
url http://hdl.handle.net/1822/63283
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Teixeira M, Pires G, Raimundo M, Nascimento S, Almeida V, Castelo-Branco M (2014) Robust Single Trial Identification of Conscious Percepts Triggered by Sensory Events of Variable Saliency. PLoS ONE 9(1): e86201. https://doi.org/10.1371/journal.pone.0086201
1932-6203
10.1371/journal.pone.0086201
24465957
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0086201
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Public Library of Science (PLOS)
publisher.none.fl_str_mv Public Library of Science (PLOS)
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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