Attention increases the temporal precision of conscious perception: verifying the Neural-ST Model.

What role does attention play in ensuring the temporal precision of visual perception? Behavioural studies have investigated feature selection and binding in time using fleeting sequences of stimuli in the Rapid Serial Visual Presentation (RSVP) paradigm, and found that temporal accuracy is reduced...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Srivas Chennu, Patrick Craston, Brad Wyble, Howard Bowman
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2009
Materias:	Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/3c9c470e97254849a752ced058a28e73
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:3c9c470e97254849a752ced058a28e73
record_format	dspace
spelling	oai:doaj.org-article:3c9c470e97254849a752ced058a28e732021-11-25T05:42:49ZAttention increases the temporal precision of conscious perception: verifying the Neural-ST Model.1553-734X1553-735810.1371/journal.pcbi.1000576https://doaj.org/article/3c9c470e97254849a752ced058a28e732009-11-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/19956744/pdf/?tool=EBIhttps://doaj.org/toc/1553-734Xhttps://doaj.org/toc/1553-7358What role does attention play in ensuring the temporal precision of visual perception? Behavioural studies have investigated feature selection and binding in time using fleeting sequences of stimuli in the Rapid Serial Visual Presentation (RSVP) paradigm, and found that temporal accuracy is reduced when attentional control is diminished. To reduce the efficacy of attentional deployment, these studies have employed the Attentional Blink (AB) phenomenon. In this article, we use electroencephalography (EEG) to directly investigate the temporal dynamics of conscious perception. Specifically, employing a combination of experimental analysis and neural network modelling, we test the hypothesis that the availability of attention reduces temporal jitter in the latency between a target's visual onset and its consolidation into working memory. We perform time-frequency analysis on data from an AB study to compare the EEG trials underlying the P3 ERPs (Event-related Potential) evoked by targets seen outside vs. inside the AB time window. We find visual differences in phase-sorted ERPimages and statistical differences in the variance of the P3 phase distributions. These results argue for increased variation in the latency of conscious perception during the AB. This experimental analysis is complemented by a theoretical exploration of temporal attention and target processing. Using activation traces from the Neural-ST(2) model, we generate virtual ERPs and virtual ERPimages. These are compared to their human counterparts to propose an explanation of how target consolidation in the context of the AB influences the temporal variability of selective attention. The AB provides us with a suitable phenomenon with which to investigate the interplay between attention and perception. The combination of experimental and theoretical elucidation in this article contributes to converging evidence for the notion that the AB reflects a reduction in the temporal acuity of selective attention and the timeliness of perception.Srivas ChennuPatrick CrastonBrad WybleHoward BowmanPublic Library of Science (PLoS)articleBiology (General)QH301-705.5ENPLoS Computational Biology, Vol 5, Iss 11, p e1000576 (2009)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biology (General) QH301-705.5
spellingShingle	Biology (General) QH301-705.5 Srivas Chennu Patrick Craston Brad Wyble Howard Bowman Attention increases the temporal precision of conscious perception: verifying the Neural-ST Model.
description	What role does attention play in ensuring the temporal precision of visual perception? Behavioural studies have investigated feature selection and binding in time using fleeting sequences of stimuli in the Rapid Serial Visual Presentation (RSVP) paradigm, and found that temporal accuracy is reduced when attentional control is diminished. To reduce the efficacy of attentional deployment, these studies have employed the Attentional Blink (AB) phenomenon. In this article, we use electroencephalography (EEG) to directly investigate the temporal dynamics of conscious perception. Specifically, employing a combination of experimental analysis and neural network modelling, we test the hypothesis that the availability of attention reduces temporal jitter in the latency between a target's visual onset and its consolidation into working memory. We perform time-frequency analysis on data from an AB study to compare the EEG trials underlying the P3 ERPs (Event-related Potential) evoked by targets seen outside vs. inside the AB time window. We find visual differences in phase-sorted ERPimages and statistical differences in the variance of the P3 phase distributions. These results argue for increased variation in the latency of conscious perception during the AB. This experimental analysis is complemented by a theoretical exploration of temporal attention and target processing. Using activation traces from the Neural-ST(2) model, we generate virtual ERPs and virtual ERPimages. These are compared to their human counterparts to propose an explanation of how target consolidation in the context of the AB influences the temporal variability of selective attention. The AB provides us with a suitable phenomenon with which to investigate the interplay between attention and perception. The combination of experimental and theoretical elucidation in this article contributes to converging evidence for the notion that the AB reflects a reduction in the temporal acuity of selective attention and the timeliness of perception.
format	article
author	Srivas Chennu Patrick Craston Brad Wyble Howard Bowman
author_facet	Srivas Chennu Patrick Craston Brad Wyble Howard Bowman
author_sort	Srivas Chennu
title	Attention increases the temporal precision of conscious perception: verifying the Neural-ST Model.
title_short	Attention increases the temporal precision of conscious perception: verifying the Neural-ST Model.
title_full	Attention increases the temporal precision of conscious perception: verifying the Neural-ST Model.
title_fullStr	Attention increases the temporal precision of conscious perception: verifying the Neural-ST Model.
title_full_unstemmed	Attention increases the temporal precision of conscious perception: verifying the Neural-ST Model.
title_sort	attention increases the temporal precision of conscious perception: verifying the neural-st model.
publisher	Public Library of Science (PLoS)
publishDate	2009
url	https://doaj.org/article/3c9c470e97254849a752ced058a28e73
work_keys_str_mv	AT srivaschennu attentionincreasesthetemporalprecisionofconsciousperceptionverifyingtheneuralstmodel AT patrickcraston attentionincreasesthetemporalprecisionofconsciousperceptionverifyingtheneuralstmodel AT bradwyble attentionincreasesthetemporalprecisionofconsciousperceptionverifyingtheneuralstmodel AT howardbowman attentionincreasesthetemporalprecisionofconsciousperceptionverifyingtheneuralstmodel
_version_	1718414453494513664

Attention increases the temporal precision of conscious perception: verifying the Neural-ST Model.

Ejemplares similares