Brain mechanisms of involuntary visuospatial attention: An event‐related potential study

Fu, Shimin; Greenwood, Pamela M.; Parasuraman, Raja

doi:10.1002/hbm.20108

Cited by 64 publications

(57 citation statements)

References 80 publications

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“…Notably, longrange intrahemispheric connections, which link brain regions important for attention (21,22) and memory (23, 24) (SI Appendix), are found to both support and distinguish between attention and memory states. We find that global changes in FC additionally distinguish between task states, with overall FC increasing during attention but decreasing during memory compared with rest.…”

Section: Discussionmentioning

confidence: 99%

Structural foundations of resting-state and task-based functional connectivity in the human brain

Hermundstad

Bassett

Brown

et al. 2013

Proc. Natl. Acad. Sci. U.S.A.

517

443

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Magnetic resonance imaging enables the noninvasive mapping of both anatomical white matter connectivity and dynamic patterns of neural activity in the human brain. We examine the relationship between the structural properties of white matter streamlines (structural connectivity) and the functional properties of correlations in neural activity (functional connectivity) within 84 healthy human subjects both at rest and during the performance of attention-and memory-demanding tasks. We show that structural properties, including the length, number, and spatial location of white matter streamlines, are indicative of and can be inferred from the strength of resting-state and task-based functional correlations between brain regions. These results, which are both representative of the entire set of subjects and consistently observed within individual subjects, uncover robust links between structural and functional connectivity in the human brain.uman cognitive function is supported by large-scale interactions between different regions of the brain. The anatomical scaffolding that mediates these interactions can be described by a structural connectome that maps the spatial layout of white matter (1). Structural connectivity (SC), defined by the physical properties of these direct anatomical connections, supports the relay of electrical signals between brain regions. Neurophysiological events can similarly be described by a functional connectome that maps coordinated changes in neuronal activity, field potentials, blood flow, or energy consumption (2). Functional connectivity (FC), defined by temporal correlations in such neurophysiological events, reflects the resting-state and task-dependent strengths of correlated activity in different brain regions (3-5). The estimation of structural and functional connectivity from different experimental techniques raises two complementary questions about the quantitative relationships between structural and functional connectomes: (i) to what extent can the resting-state and task-dependent strengths of functional correlations between brain regions be inferred from structural connectomes, and (ii) to what extent can the physical properties of anatomical connections be inferred from functional connectomes?Connectomes, whether examined at the neural or systems level, are networks whose structural properties, such as the length and number of connections, can differentially impact functional properties, such as local or global correlations in temporal dynamics. Whereas the length and density of anatomical connections are thought to impact functional processes such as information segregation and integration (6, 7), the extent to which such relationships are robustly observed in the human brain is not well understood. Previous studies have been limited in scope to specific anatomical connections and brain regions, small sample sizes, and resting-state neural activity (8-13) and have consequently left several fundamental questions unanswered. How do variations in structural features, such a...

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Section: Discussionmentioning

confidence: 99%

Structural foundations of resting-state and task-based functional connectivity in the human brain

Hermundstad

Bassett

Brown

et al. 2013

Proc. Natl. Acad. Sci. U.S.A.

517

443

View full text Add to dashboard Cite

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“…Thomas et al 2009;Tian and Yao 2008;E. Kirmizi-12 Alsan et al 2006;Lavric et al 2004;Bokura et al 2002;Filipovic et al 2000), Eriksen Flanker (Abad-Rodriguez et al 2004Hsieh and Fang 2012;Johnstone et al 2009;Wild-Wall et al 2008) and Spatial cueing (Fu et al 2005;McDonald et al 1999;Wascher and Tipper 2004) tasks. However, there is also involvement of these early ERP components in cognitive paradigms, such as Location-based Priming (Gibbons et al 2006;Kathmann et al 2006) and emotional Stroop (S. J.…”

Section: Erps For Inhibition In the First 200 Msmentioning

confidence: 99%

Event-Related Brain Potentials in the Study of Inhibition: Cognitive Control, Source Localization and Age-Related Modulations

et al. 2014

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In the previous fifteen years, a variety of experimental paradigms and methods have been employed to study inhibition. In the current review, we analyze studies that have used the high temporal resolution of the event-related potential (ERP) technique to identify the temporal course of inhibition to understand the various processes that contribute to inhibition. ERP studies with a focus on normal aging are specifically analyzed because they contribute to a deeper understanding of inhibition. Three time windows are proposed to organize the ERP data collected using inhibition paradigms: the 200 ms period following stimulus onset; the period between 200 and 400 ms after stimulus onset; and the period between 400 and 800 ms after stimulus onset. In the first 200 ms, ERP inhibition research has primarily focused on N1 and P1 as the ERP components associated with inhibition. The inhibitory processing in the second time window has been associated with the N2 and P3 ERP components. Finally, in the third time window, inhibition has primarily been associated with the N400 and N450 ERP components. Source localization studies are analyzed to examine 2 the association between the inhibition processes that are indexed by the ERP components and their functional brain areas. Inhibition can be organized in a complex functional structure that is not constrained to a specific time point but, rather, extends its activity through different time windows. This review characterizes inhibition as a set of processes rather than a unitary process.

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“…[22,[83][84][85][86][87][88][89][90][91][92][93]). The data regarding the useful field of view (UFOV, Fig.…”

Section: Visual Spatial Attention In Dyslexia and Action Video Gamesmentioning

confidence: 99%

“Shall We Play a Game?”: Improving Reading Through Action Video Games in Developmental Dyslexia

Franceschini

Bertoni

Ronconi

et al. 2015

Curr Dev Disord Rep

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Impaired linguistic-phonological processing is the most accepted explanation of developmental dyslexia (DD). However, growing literature shows that DD is the result of the combination of several neurocognitive causes. Visual attention and magnocellular-dorsal (MD) pathway deficits are now considered causes of DD. Interestingly, a large portion of literature showed that action video games (AVG) are able to improve attentional and perceptual skills in typical readers. Consequently, employing AVG trainings in individuals with DD could improve attention and perception, resulting in better reading skills. The aim of our review is to show the benefits of the AVG training on DD through the changes in the neurocognitive functions at the basis of learning to read. Since visual attentional and MD dysfunctions can be diagnosed in infancy, our review paves the way for possible early prevention programs that could use AVG training.

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Brain mechanisms of involuntary visuospatial attention: An event‐related potential study

Cited by 64 publications

References 80 publications

Structural foundations of resting-state and task-based functional connectivity in the human brain

Structural foundations of resting-state and task-based functional connectivity in the human brain

Event-Related Brain Potentials in the Study of Inhibition: Cognitive Control, Source Localization and Age-Related Modulations

“Shall We Play a Game?”: Improving Reading Through Action Video Games in Developmental Dyslexia

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