Beyond Time and Space: The Effect of a Lateralized Sustained Attention Task and Brain Stimulation on Spatial and Selective Attention

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Beyond Time and Space : The Effect of a Lateralized Sustained Attention Task and Brain Stimulation on Spatial and Selective Attention. / Shalev, Nir; De Wandel, Linde; Dockree, Paul; Demeyere, Nele; Chechlacz, Magdalena.

In: Cortex, 10.2018, p. 131-147.

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@article{ecadf7ee00764cd1a950463458878d8c,
title = "Beyond Time and Space: The Effect of a Lateralized Sustained Attention Task and Brain Stimulation on Spatial and Selective Attention",
abstract = "The Theory of Visual Attention (TVA) provides a mathematical formalisation of the “biased competition” account of visual attention. Applying this model to individual performance in a free recall task allows the estimation of 5 independent attentional parameters: visual short term memory capacity, speed of information processing, perceptual threshold of visual detection; attentional weights representing spatial distribution of attention (spatial bias), andthe top-down selectivity index. While the TVA focuses on selection in space, complementary accounts of attention describe how attention is maintained over time, and how temporal processes interact with selection. A growing body of evidence indicates that different facets of attention interact and share common neural substrates. The aim of the current study was to modulate a spatial attentional bias via transfer effects, based on a mechanistic understanding of the interplay between spatial, selective and temporal aspects of attention.Specifically, we examined here: (i) whether a single administration of a lateralized sustained attention task could prime spatial orienting and lead to transferable changes in attentional weights (assigned to the left versus right hemi-field) and/or other attentional parameters assessed within the framework of TVA (Experiment 1); (ii) whether the effects of such spatial priming on TVA parameters could be further enhanced by bi-parietal high frequency tRNS (Experiment 2). Our results demonstrate that spatial attentional bias, as assessed within the TVA framework, was primed by sustaining attention towards the right hemi-field, but this spatial-priming effect did not occur when sustaining attention towards the left. Furthermore, we show that bi-parietal high-frequency tRNS combined with the rightward spatial-priming resulted in an increased attentional selectivity. To conclude, we present a novel, theory-driven method for attentional modulation providing important insights into how the spatial and temporal processes in attention interact with attentional selection. ",
keywords = "spatial bias, sustained attention, spatial-priming, tRNS, attentional selection, cognitive enhancement",
author = "Nir Shalev and {De Wandel}, Linde and Paul Dockree and Nele Demeyere and Magdalena Chechlacz",
year = "2018",
month = oct,
doi = "10.1016/j.cortex.2017.09.009",
language = "English",
pages = "131--147",
journal = "Cortex",
issn = "0010-9452",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Beyond Time and Space

T2 - The Effect of a Lateralized Sustained Attention Task and Brain Stimulation on Spatial and Selective Attention

AU - Shalev, Nir

AU - De Wandel, Linde

AU - Dockree, Paul

AU - Demeyere, Nele

AU - Chechlacz, Magdalena

PY - 2018/10

Y1 - 2018/10

N2 - The Theory of Visual Attention (TVA) provides a mathematical formalisation of the “biased competition” account of visual attention. Applying this model to individual performance in a free recall task allows the estimation of 5 independent attentional parameters: visual short term memory capacity, speed of information processing, perceptual threshold of visual detection; attentional weights representing spatial distribution of attention (spatial bias), andthe top-down selectivity index. While the TVA focuses on selection in space, complementary accounts of attention describe how attention is maintained over time, and how temporal processes interact with selection. A growing body of evidence indicates that different facets of attention interact and share common neural substrates. The aim of the current study was to modulate a spatial attentional bias via transfer effects, based on a mechanistic understanding of the interplay between spatial, selective and temporal aspects of attention.Specifically, we examined here: (i) whether a single administration of a lateralized sustained attention task could prime spatial orienting and lead to transferable changes in attentional weights (assigned to the left versus right hemi-field) and/or other attentional parameters assessed within the framework of TVA (Experiment 1); (ii) whether the effects of such spatial priming on TVA parameters could be further enhanced by bi-parietal high frequency tRNS (Experiment 2). Our results demonstrate that spatial attentional bias, as assessed within the TVA framework, was primed by sustaining attention towards the right hemi-field, but this spatial-priming effect did not occur when sustaining attention towards the left. Furthermore, we show that bi-parietal high-frequency tRNS combined with the rightward spatial-priming resulted in an increased attentional selectivity. To conclude, we present a novel, theory-driven method for attentional modulation providing important insights into how the spatial and temporal processes in attention interact with attentional selection.

AB - The Theory of Visual Attention (TVA) provides a mathematical formalisation of the “biased competition” account of visual attention. Applying this model to individual performance in a free recall task allows the estimation of 5 independent attentional parameters: visual short term memory capacity, speed of information processing, perceptual threshold of visual detection; attentional weights representing spatial distribution of attention (spatial bias), andthe top-down selectivity index. While the TVA focuses on selection in space, complementary accounts of attention describe how attention is maintained over time, and how temporal processes interact with selection. A growing body of evidence indicates that different facets of attention interact and share common neural substrates. The aim of the current study was to modulate a spatial attentional bias via transfer effects, based on a mechanistic understanding of the interplay between spatial, selective and temporal aspects of attention.Specifically, we examined here: (i) whether a single administration of a lateralized sustained attention task could prime spatial orienting and lead to transferable changes in attentional weights (assigned to the left versus right hemi-field) and/or other attentional parameters assessed within the framework of TVA (Experiment 1); (ii) whether the effects of such spatial priming on TVA parameters could be further enhanced by bi-parietal high frequency tRNS (Experiment 2). Our results demonstrate that spatial attentional bias, as assessed within the TVA framework, was primed by sustaining attention towards the right hemi-field, but this spatial-priming effect did not occur when sustaining attention towards the left. Furthermore, we show that bi-parietal high-frequency tRNS combined with the rightward spatial-priming resulted in an increased attentional selectivity. To conclude, we present a novel, theory-driven method for attentional modulation providing important insights into how the spatial and temporal processes in attention interact with attentional selection.

KW - spatial bias

KW - sustained attention

KW - spatial-priming

KW - tRNS

KW - attentional selection

KW - cognitive enhancement

U2 - 10.1016/j.cortex.2017.09.009

DO - 10.1016/j.cortex.2017.09.009

M3 - Article

SP - 131

EP - 147

JO - Cortex

JF - Cortex

SN - 0010-9452

ER -