Selective activation of the superior frontal gyrus in task-switching: An event-related fNIRS study

Cutini, Simone; Scatturin, Pietro; Menon, Enrica; Bisiacchi, Patrizia; Gamberini, Luciano; Zorzi, Marco; Dell’Acqua, Roberto

doi:10.1016/j.neuroimage.2008.05.013

Cited by 86 publications

(55 citation statements)

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“…Chica & Bartolomeo (2010) argued that, although implicit learning might play a role in this phenomenon, the concurrent involvement of strategic control cannot be excluded (see also Risko & Stolz, 2010b). Earlier findings (Risko, Blais, Stolz, & Besner, 2008a,b) suggest a modulation of spatial orienting performance due to frequency differences, whereby the more frequent condition would give rise to a more efficient processing than the less frequent condition (see Cutini et al, 2008 for converging evidence in task-switching).…”

Section: Discussionmentioning

confidence: 96%

Cue-target contingencies modulate voluntary orienting of spatial attention: dissociable effects for speed and accuracy

Bonato

Lisi

Pegoraro

2016

Psychological Research

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Section: Discussionmentioning

confidence: 96%

Cue-target contingencies modulate voluntary orienting of spatial attention: dissociable effects for speed and accuracy

Bonato

Lisi

Pegoraro

2016

Psychological Research

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“…P3a activity was detected for correctly reported T2 stimuli but not for missed items, as though the cause of the failure to report T2 could be ascribed to a failure to switch mental set or selection criteria between the different tasks. Task-switching in RSVP designs is known to exacerbate AB effects (Kawahara, Zuvic, Enns, & Di Lollo, 2003), and this may be so because taskswitching is controlled by frontal areas partly overlapping with those underpinning the deployment of top-down attention to target information (e.g., Cutini et al, 2008;Dove, Pollmann, Schubert, Wiggins, & von Cramon, 2000). However, task-switching between T1 and T2 processing in the AB has been hypothesized to draw on distinct capacity limitations relative to those held to constitute the root cause of the AB (Dale, Dux, & Arnell, 2013;Kelly & Dux, 2011;see Visser, Bischof, & Di Lollo, 1999, for a review).…”

Section: Discussionmentioning

confidence: 99%

The Attentional Blink Impairs Detection and Delays Encoding of Visual Information: Evidence from Human Electrophysiology

Dell’Acqua

Dux

Wyble

et al. 2015

Journal of Cognitive Neuroscience

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Abstract■ This article explores the time course of the functional interplay between detection and encoding stages of information processing in the brain and the role they play in conscious visual perception. We employed a multitarget rapid serial visual presentation (RSVP) approach and examined the electrophysiological P3 component elicited by a target terminating an RSVP sequence. Target-locked P3 activity was detected both at frontal and parietal recording sites and an independent component analysis confirmed the presence of two distinct P3 components. The posterior P3b varied with intertarget lag, with diminished amplitude and postponed latency at short relative to long lagsan electroencephalographic signature of the attentional blink (AB). Under analogous conditions, the anterior P3a was also reduced in amplitude but did not vary in latency. Collectively, the results provide an electrophysiological record of the interaction between frontal and posterior components linked to detection (P3a) and encoding (P3b) of visual information. Our findings suggest that, although the AB delays target encoding into working memory, it does not slow down detection of a target but instead reduces the efficacy of this process. A functional characterization of P3a in attentive tasks is discussed with reference to current models of the AB phenomenon. ■

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“…fNIRS is an optical imaging technique where near-infrared light of two different wavelengths is shone through tissue and is selectively absorbed by oxy-(HbO) and deoxy-(HbR) hemoglobin. fNIRS has been used to explore neural function underlying a wide range of sensory (Bortfeld et al, 2007;Chen et al, 2015;Plichta et al, 2011;Wijeakumar et al, 2012), motor (Gagnon et al, 2012;Huppert et al, 2006) and cognitive functions such as working memory, response inhibition, and task-switching (Cutini et al, 2008;Rodrigo et al, 2014;Wijeakumar et al, 2017). fNIRS is a convenient technique for investigating brain function in response to VWM processing because the regions of interest (ROIs) are near the cortical surface.…”

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confidence: 99%

Modulating perceptual complexity and load reveals degradation of the visual working memory network in ageing

2017

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Previous neuroimaging studies have reported a posterior to anterior shift of activation in ageing (PASA). Here, we explore the nature of this shift by modulating load (1,2 or 3 items) and perceptual complexity in two variants of a visual working memory task (VWM): a 'simple' color and a 'complex' shape change detection task. Functional near-infrared spectroscopy (fNIRS) was used to record changes in activation in younger (N=24) and older adults (N=24). Older adults exhibited PASA by showing lesser activation in the posterior cortex and greater activation in the anterior cortex when compared to younger adults. Further, they showed reduced accuracy at loads 2 and 3 for the simple task and across all loads for the complex task. Activation in the posterior and anterior cortices was modulated differently for younger and older adults. In older adults, increasing load in the simple task was accompanied by decreasing activation in the posterior cortex and lack of modulation in the anterior cortex, suggesting the inability to encode and/or maintain representations without much aid from higher-order centers. In the complex task, older adults recruited verbal working memory areas in the posterior cortex, suggesting that they used adaptive strategies such as labelling the shape stimuli. This was accompanied by reduced activation in the anterior cortex reflecting the inability to exert top-down modulation to typical VWM areas in the posterior cortex to improve behavioral performance. IntroductionVisual working memory (VWM) is a short term storage system for visual information that is critical for at least two central aspects of cognition -for the comparison of percepts that cannot be simultaneously foveated and for identifying changes in the world when they occur (Luck and Vogel, 1997). As a result, VWM is central to adaptive functions such as navigation, driving, reading, and so on. Healthy VWM processing is critical throughout the human life span, and deficits in VWM processing have serious consequences for performance during early development and late adulthood.In healthy ageing, there are marked changes in this cognitive system. Decline in VWM is reported to start as early as in the fourth decade of life with a drop of 0.20 2 items per decade in both verbal and spatial working memory (Salthouse 1994). Although these data suggest a dramatic decline in working memory function, other factors might also play a role: factors such as deconditioning of physiological processes following inactivity, arthritis, and declining motor abilities can affect behavioral measures such as accuracy and reaction times. One way to move beyond motoric deficits is to investigate brain function alongside behavior in younger and older adults.Studies of WM using functional magnetic resonance imaging (fMRI) implicate a distributed cortical network that spans the frontal, parietal, and temporo-occipital cortices (Druzgal and D'Esposito, 2003;Learmonth et al., 2002;Linden et al., 2003;Ma et al., 2014;Pessoa and Ungerleider, 2004;Postle, 2015;R...

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Selective activation of the superior frontal gyrus in task-switching: An event-related fNIRS study

Cited by 86 publications

References 68 publications

Cue-target contingencies modulate voluntary orienting of spatial attention: dissociable effects for speed and accuracy

Cue-target contingencies modulate voluntary orienting of spatial attention: dissociable effects for speed and accuracy

The Attentional Blink Impairs Detection and Delays Encoding of Visual Information: Evidence from Human Electrophysiology

Modulating perceptual complexity and load reveals degradation of the visual working memory network in ageing

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